EX4400 Models and Specifications

Table 1: EX4400 Switch Models
Non-PoE Models	PoE Models	Multigigabit Models
EX4400-24T	EX4400-24P	EX4400-24MP
EX4400-24X	EX4400-48P	EX4400-48MP
EX4400-48T	EX4400-48XP Switch	EX4400-48MXP Switch
EX4400-48F

EX4400-24P Switch

Components on the Front and Rear Panels of EX4400-24P Switches

Figure 1 shows the front view of an EX4400-24P switch with 24 RJ-45 ports that support PoE-bt.

Figure 1: Front View of an EX4400-24P Switch Juniper Networks EX4400 Ethernet Switch with 24 Ethernet ports, 4 uplink slots, PoE++ support, and LED status indicators.

Juniper Networks EX4400 Ethernet Switch with 24 Ethernet ports, 4 uplink slots, PoE++ support, and LED status indicators.

Figure 2 shows the rear view of an EX4400-24T and EX4400-24P switch with AC power supplies.

Figure 2: Rear View of an EX4400-24P Switch with AC Power Supplies Rear view of network switch showing console and management Ethernet ports, reset button, fan modules, power supply units, and status indicator LEDs for data center use.

Rear view of network switch showing console and management Ethernet ports, reset button, fan modules, power supply units, and status indicator LEDs for data center use.

Note:

We enabled the CLD LED feature in Junos OS Release 21.2R1.

Figure 3 shows the components on the front panel of an EX4400-24P switch.

Figure 3: Components on the Front Panel of an EX4400-24P Switch Juniper Networks EX4400 PoE++ Ethernet Switch front panel with Ethernet ports, USB and RJ-45 console ports, system status LEDs, mode button, and serial number label.

Juniper Networks EX4400 PoE++ Ethernet Switch front panel with Ethernet ports, USB and RJ-45 console ports, system status LEDs, mode button, and serial number label.

1 — 10/100/1000BASE-T ports. These ports support PoE-bt.	4 — Port mode LEDs (labeled SPD, DX, EN, and POE)
2 — USB-C console port	5 — Factory reset/mode button
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)	6 — Extension module slot

Note:

We enabled the CLD LED feature in Junos OS Release 21.2R1.

Figure 4 shows the components on the rear panel of an EX4400-24P switch. This model supports 1050-W, 1600-W AC and the 2000-W DC power supplies. The 2000-W DC power supply is separately orderable with the spare switch model - EX4400-24P. The EX4400-24P switch supports 1600-W AC power supply if you have Junos OS Release 22.3R1 or later installed. We ship the switch with one 1050-W power supply. You can order the additional power supply separately. You must not install different models of power supplies in the same chassis.

Figure 4: Components on the Rear Panel of an EX4400-24P Switch Rear view of a network device with labeled components including console port, management port, reset button, USB port, network ports, status LEDs, fan module, power supply unit, blank slot, and chassis grounding point.

Rear view of a network device with labeled components including console port, management port, reset button, USB port, network ports, status LEDs, fan module, power supply unit, blank slot, and chassis grounding point.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — Power supply

Table 2 lists the components shipped with EX4400-24P switch models.

Table 3 describes the physical specifications, ports, and throughput of EX4400-24P switches.

Table 4 describes the power supply and cooling system specifications of EX4400-24P switch models

Table 2: EX4400-24P Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-24P	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 1050-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-24P-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	21.1R1

Table 3: EX4400-24P Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-24P): 6.9 kg Switch with no power supply, fan module, or extension module installed (EX4400-24P-S): 5.66 kg Fan module: 0.26 lb (0.12 kg) 1050 W AC power supply: 1.98 lb (0.9 kg) 1600 W AC power supply: 2.0 lb (0.91 kg) 2000 W DC power supply: 2.05 lb (0.93 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	10/100/1000BASE-T ports: 24 100GbE QSFP28 ports: 2
PoE Ports (PoE-bt)	24—delivers upto 90 W per port
Throughput	324 Gbps—Unidirectional) 648 Gbps—Bbidirectional

Table 4: EX4400-24P Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-24P	Two power supply slots with one power supply preinstalled 1050 W AC (preinstalled) 1600 W AC (optional) Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-24P-S	Two power supply slots 2000 W DC (optional) You need to order power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) fan modules separately and install them in these slots

EX4400-24T Switches

Components on the Front and Rear Panels of EX4400-24T

Figure 5 shows the front view of an EX4400-24T switch with 24 RJ-45 ports.

Figure 5: Front View of an EX4400-24T Switch Juniper EX4400 Ethernet Switch with RJ-45 and SFP ports, model name and logo visible, LED status indicators present.

Figure 6 shows the rear view of an EX4400-24T switch with AC power supplies.

Figure 6: Rear View of an EX4400-24T Switch with AC Power Supplies Rear view of network switch showing console and management Ethernet ports, reset button, fan modules, power supply units, and status indicator LEDs for data center use.

Figure 7 shows the rear view of an EX4400-24T switch with DC power supplies.

Figure 7: Rear View of an EX4400-24T Switch with DC Power Supplies Rear view of a network device showing ports like CON and MGMT, USB, reset button, grounding point, cooling fans, and power supply units.

Rear view of a network device showing ports like CON and MGMT, USB, reset button, grounding point, cooling fans, and power supply units.

Figure 8 shows the components on the front panel of an EX4400-24T switch.

Figure 8: Components on the Front Panel of an EX4400-24T Switch Diagram of Juniper Networks EX4400 front panel with labeled components: network ports, USB console port, system status LEDs, mode button, ejector handle, and serial number label.

Diagram of Juniper Networks EX4400 front panel with labeled components: network ports, USB console port, system status LEDs, mode button, ejector handle, and serial number label.

1 — 10/100/1000BASE-T ports	4 — Port mode LEDs (labeled SPD, DX, and EN)
2 — USB-C console port	5 — Factory reset/mode button
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)	6 — Extension module slot

Note:

We enabled the CLD LED feature in Junos OS Release 21.2R1.

EX4400-24T model supports 550-W AC or DC power supplies. You must not install AC and DC power supplies in the same chassis.

Figure 9 shows the components on the rear panel of an EX4400-24T switch with an AC power supply.

Figure 9: Components on the Rear Panel of an EX4400-24T Switch with an AC Power Supply Rear view of a network device with labeled components: console port, management port, ethernet ports, reset button, expansion slots, airflow indicator, fan modules, power supply input, PSU, thumb screws, grounding point, status LEDs, and air intake/exhaust.

Rear view of a network device with labeled components: console port, management port, ethernet ports, reset button, expansion slots, airflow indicator, fan modules, power supply input, PSU, thumb screws, grounding point, status LEDs, and air intake/exhaust.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — Electrostatic discharge (ESD) point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — Common Language Equipment Identifier (CLEI) code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — 550-W AC power supply

Figure 10 shows the components on the rear panel of an EX4400-24T switch with a DC power supply.

Figure 10: Components on the Rear Panel of an EX4400-24T Switch with a DC Power Supply Rear view of a rack-mounted network device showing console and management ports, Ethernet and USB ports, reset button, network ports, cooling fans, power supply unit, empty power slot, and grounding point.

Rear view of a rack-mounted network device showing console and management ports, Ethernet and USB ports, reset button, network ports, cooling fans, power supply unit, empty power slot, and grounding point.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — 550-W DC power supply

Table 5 lists the components shipped with EX4400-24T switch models.

Table 6 describes the physical specifications, ports, and throughput of EX4400-24T switches.

Table 7 describes the power supply and cooling system specifications of EX4400-24T switch models

Table 5: EX4400-24T Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-24T	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-24T-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the blue handle)	A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the blue handle)	21.1R1
EX4400-24T-DC	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-24T-DC-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the blue handle)	A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the blue handle)	21.1R1
EX4400-24T-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	21.1R1

Table 6: EX4400-24T Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-24T): 6.5 kg Switch with no power supply, fan module, or extension module installed (EX4400-24T-AFI): 6.5 kg Switch with no power supply, fan module, or extension module installed (EX4400-24T-DC): 6.45 kg Switch with no power supply, fan module, or extension module installed (EX4400-24T-DC-AFI): 6.45 kg Switch with no power supply, fan module, or extension module installed (EX4400-24T-S): 5.36 kg Fan module: 0.26 lb (0.12 kg) 550 W AC power supply: 1.76 lb (0.8 kg) 550 W DC power supply: 1.65 lb (0.75 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	10/100/1000BASE-T ports: 24 100GbE QSFP28 ports: 2
Throughput	324 Gbps—Unidirectional) 648 Gbps—Bbidirectional

Table 7: EX4400-24T Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-24T	Two power supply slots with one power supply preinstalled 550 W AC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-24T-AFI	Two power supply slots with one power supply preinstalled 550 W AC Back-to-front airflow (indicated by the AIR IN label and the blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the blue handle)
EX4400-24T-DC	Two power supply slots with one power supply preinstalled 550 W DC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-24T-DC-AFI	Two power supply slots with one power supply preinstalled 550 W DC Back-to-front airflow (indicated by the AIR IN label and the blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the blue handle)
EX4400-24T-S	Two power supply slots You need to order AC or DC power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) or back-to-front airflow (AFI) fan modules separately and install them in these slots

EX4400-24X Switch

Components on the Front and Rear Panels of EX4400-24X Switches

Figure 11 shows the front view of an EX4400-24X switch with 24 10GbE small form-factor pluggable (SFP)/small form-factor pluggable plus (SFP+) ports.

Figure 11: Front View of an EX4400-24X Switch

Juniper Networks EX4400-24X Ethernet Switch with SFP/SFP+ and RJ-45 ports, reset button, status LEDs, and modular slot.

Figure 12 shows the rear view of an EX4400-24X switch with an AC power supply.

Figure 12: Rear View of an EX4400-24X Switch with an AC Power Supply Rear view of network hardware with orange cooling fans labeled AIR OUT, a power input port, and blanking plates for unused slots.

Rear view of network hardware with orange cooling fans labeled AIR OUT, a power input port, and blanking plates for unused slots.

Figure 13 shows the components on the front panel of an EX4400-24X switch.

Figure 13: Components on the Front Panel of an EX4400-24X Switch Labeled diagram of Juniper Networks EX4400-24X Ethernet Switch front panel with console, management, network, uplink ports, LEDs, USB, and reset button.

Labeled diagram of Juniper Networks EX4400-24X Ethernet Switch front panel with console, management, network, uplink ports, LEDs, USB, and reset button.

1 — Console port (labeled CON)	7 — Factory reset/mode button
2 — Management port (labeled MGMT)	8 — Extension module slot
3 — 24 SFP/SFP+ ports	9 — QSFP28 ports
4 — USB-C console port	10 — Reset button
5 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)	11 — USB-A port
6 — Port mode LEDs (labeled SPD, DX, and EN)

Figure 14 shows the components on the rear panel of an EX4400-24X switch with an AC power supply.

Figure 14: Components on the Rear Panel of an EX4400-24X Switch with an AC Power Supply Technical diagram of rear view of rack-mounted server showing components: status indicator, cooling air vents, power input, blank panels, mounting points, grounding bracket, and QR code for documentation.

Technical diagram of rear view of rack-mounted server showing components: status indicator, cooling air vents, power input, blank panels, mounting points, grounding bracket, and QR code for documentation.

1 — Serial number ID label	6 — Power supply rating label
2 — CLEI code label	7 — ESD point
3 — Fan module	8 — Protective earthing terminal
4 — 550-W AC power supply	9 — Claim code label
5 — Empty slot for power supply

Figure 15 shows the components on the rear panel of an EX4400-24X switch with a DC power supply.

Figure 15: Components on the Rear Panel of an EX4400-24X Switch with a DC Power Supply Rear view diagram of a server chassis with numbered labels indicating components: power supply, cooling fans, expansion slot, blank panel, mounting bracket, and QR code.

Rear view diagram of a server chassis with numbered labels indicating components: power supply, cooling fans, expansion slot, blank panel, mounting bracket, and QR code.

1 — Serial number ID label	6 — Power supply rating label
2 — CLEI code label	7 — ESD point
3 — Fan module	8 — Protective earthing terminal
4 — 550-W DC power supply	9 — Claim code label
5 — Empty slot for power supply

Table 8 lists the components shipped with EX4400-24X switch models.

Table 9 describes the physical specifications, ports, and throughput of EX4400-24X switches.

Table 10 describes the power supply and cooling system specifications of EX4400-24X switch models

Table 8: EX4400-24X Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-24X	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-24X-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the blue handle)	A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the blue handle)	23.1R1
EX4400-24X-DC	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	23.1R1
EX4400-24X-DC-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the blue handle)	A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the blue handle)	23.1R1

Table 9: EX4400-24X Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-24X): 6.7 kg Switch with no power supply, fan module, or extension module installed (EX4400-24X-S): 5.52 kg Switch with no power supply, fan module, or extension module installed (EX4400-24X-AFI): 6.7 kg Switch with no power supply, fan module, or extension module installed (EX4400-24X-DC): 6.65 kg Switch with no power supply, fan module, or extension module installed (EX4400-24X-DC-AFI): 6.65 kg Fan module: 0.26 lb (0.12 kg) 550 W AC power supply: 1.76 lb (0.8 kg) 550 W DC power supply: 1.65 lb (0.75 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	1/10GbE ports: 24 100GbE QSFP28 ports: 2
Throughput	540 Gbps—Unidirectional) 1080 Gbps—Bbidirectional

Table 10: EX4400-24X Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-24X	Two power supply slots with one power supply preinstalled 550 W AC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-24X-AFI	Two power supply slots with one power supply preinstalled 550 W AC Back-to-front airflow (indicated by the AIR IN label and the blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the blue handle)
EX4400-24X-DC	Two power supply slots with one power supply preinstalled 550 W DC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-24X-DC-AFI	Two power supply slots with one power supply preinstalled 550 W DC Back-to-front airflow (indicated by the AIR IN label and the blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the blue handle)

EX4400-48F Switches

Components on the Front and Rear Panels of EX4400-48F Switches

Figure 16 shows the front view of an EX4400-48F switch with 36 SFP ports and 12 SFP+ ports.

Figure 16: Front View of an EX4400-48F Switch Juniper EX4400-48F network switch with multiple connection ports and status indicators for managing data traffic.

Juniper EX4400-48F network switch with multiple connection ports and status indicators for managing data traffic.

Figure 17 shows the rear view of an EX4400-48F switch with AC power supplies.

Figure 17: Rear View of an EX4400-48F Switch with AC Power Supplies Rear view of network switch showing console and management Ethernet ports, reset button, fan modules, power supply units, and status indicator LEDs for data center use.

Figure 18 shows the rear view of an EX4400-48F switch with DC power supplies.

Figure 18: Rear View of an EX4400-48F Switch with DC Power Supplies Rear view of a network device showing ports like CON and MGMT, USB, reset button, grounding point, cooling fans, and power supply units.

Figure 19 shows the components on the front panel of an EX4400-48F switch.

Figure 19: Components on the Front Panel of an EX4400-48F Switch Diagram of Juniper Networks EX4400-48F switch highlighting front panel with 48 fiber ports, system status LEDs, alarm and speed LEDs, Ethernet management port, and console port.

Diagram of Juniper Networks EX4400-48F switch highlighting front panel with 48 fiber ports, system status LEDs, alarm and speed LEDs, Ethernet management port, and console port.

1 — SFP ports	5 — Port mode LEDs (labeled SPD, DX, and EN)
2 — SFP+ ports	6 — Factory reset/mode button
3 — USB-C console port	7 — Extension module slot
4 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)

Note:

We enabled the CLD LED feature in Junos OS Release 21.2R1.

EX4400-48F model supports 550-W AC or DC power supplies. You must not install AC and DC power supplies in the same chassis.

Figure 20 shows the components on the rear panel of an EX4400-48F switch with an AC power supply.

Figure 20: Components on the Rear Panel of an EX4400-48F Switch with an AC Power Supply Rear view of a network device with labeled components: console port, management port, ethernet ports, reset button, expansion slots, airflow indicator, fan modules, power supply input, PSU, thumb screws, grounding point, status LEDs, and air intake/exhaust.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — 550-W AC power supply

Figure 21 shows the components on the rear panel of an EX4400-48F switch with a DC power supply.

Figure 21: Components on the Rear Panel of an EX4400-48F Switch with a DC Power Supply Rear view of a rack-mounted network device showing console and management ports, Ethernet and USB ports, reset button, network ports, cooling fans, power supply unit, empty power slot, and grounding point.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — 550-W DC power supply

Table 11 lists the components shipped with EX4400-48F switch models.

Table 12 describes the physical specifications, ports, and throughput of EX4400-48F switches.

Table 13 describes the power supply and cooling system specifications of EX4400-48F switch models

Table 11: EX4400-48F Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-48F	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-48F-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the blue handle)	A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the blue handle)	21.1R1
EX4400-48F-DC	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-48F-DC-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the blue handle)	A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the blue handle)	21.1R1
EX4400-48F-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	21.1R1

Table 12: EX4400-48F Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-48F): 6.65 kg Switch with no power supply, fan module, or extension module installed (EX4400-48F-DC): 6.89 kg Switch with no power supply, fan module, or extension module installed (EX4400-48F-S): 5.8 kg Switch with no power supply, fan module, or extension module installed (EX4400-48F-AFI): 6.94 kg Switch with no power supply, fan module, or extension module installed (EX4400-48F-DC-AFI): 6.89 kg Fan module: 0.26 lb (0.12 kg) 550 W AC power supply: 1.76 lb (0.8 kg) 550 W DC power supply: 1.65 lb (0.75 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	10/100/1000BASE-X ports: 36 100/1000/2500/5000/10000BASE-X ports: 12 Note: For ports 36-47 these optics EX-SFP-1FE-[FX/SX/LX] do not support auto negotiation.
Throughput	348 Gbps—Unidirectional) 696 Gbps—Bbidirectional

Table 13: EX4400-48F Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-48F	Two power supply slots with one power supply preinstalled 550 W AC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-48F-AFI	Two power supply slots with one power supply preinstalled 550 W AC Back-to-front airflow (indicated by the AIR IN label and the blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the blue handle)
EX4400-48F-DC	Two power supply slots with one power supply preinstalled 550 W DC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-48F-DC-AFI	Two power supply slots with one power supply preinstalled 550 W DC Back-to-front airflow (indicated by the AIR IN label and the blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the blue handle)
EX4400-48F-S	Two power supply slots You need to order AC or DC power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) or back-to-front airflow (AFI) fan modules separately and install them in these slots

EX4400-48P Switch

Components on the Front and Rear Panels of an EX4400-48P Switch

Figure 22 shows the front view of an EX4400-48P switch with 48 RJ-45 ports that support PoE-bt.

Figure 22: Front View of an EX4400-48P Switch Juniper Networks EX4400 Ethernet switch with multiple ports and PoE++ support for enterprise networking.

Juniper Networks EX4400 Ethernet switch with multiple ports and PoE++ support for enterprise networking.

Figure 23 shows the rear view of an EX4400-48P switch.

Figure 23: Rear View of an EX4400-48P Switch Rear view of network switch showing console and management Ethernet ports, reset button, fan modules, power supply units, and status indicator LEDs for data center use.

Note:

We’ve enabled the CLD LED feature in Junos OS Release 21.2R1.

Figure 24 shows the components on the front panel of an EX4400-48P switch.

Figure 24: Components on the Front Panel of an EX4400-48P Switch Juniper Networks EX4400 PoE++ Ethernet Switch front panel with Ethernet ports, USB port, LED indicators, console port, management port, and expansion slot.

Juniper Networks EX4400 PoE++ Ethernet Switch front panel with Ethernet ports, USB port, LED indicators, console port, management port, and expansion slot.

1 — 10/100/1000BASE-T ports. These ports support PoE-bt.	4 — Port mode LEDs (labeled SPD, DX, EN, and POE)
2 — USB-C console port	5 — Factory reset/mode button
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)	6 — Extension module slot

Note:

We enabled the CLD LED feature in Junos OS Release 21.2R1.

Figure 25 shows the components on the rear panel of an EX4400-48P switch. This model supports 1600-W AC and 2000-W DC power supplies. The 2000-W DC power supply is separately orderable with the spare switch model - EX4400-48P-S.

Figure 25: Components on the Rear Panel of an EX4400-48P Switch Diagram of a network switch rear panel with labeled components: console port, management port, reset button, USB port, network interface slots, fan module slot, fan module, power supply unit slot, power supply unit, blank panel, grounding point, additional network interface slots, LED indicators, screw holes, and label or sticker area.

Diagram of a network switch rear panel with labeled components: console port, management port, reset button, USB port, network interface slots, fan module slot, fan module, power supply unit slot, power supply unit, blank panel, grounding point, additional network interface slots, LED indicators, screw holes, and label or sticker area.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — Power supply

Table 14 lists the components shipped with EX4400-48P switch models.

Table 15 describes the physical specifications, ports, and throughput of EX4400-48P switches.

Table 16 describes the power supply and cooling system specifications of EX4400-48P switch models

Table 14: EX4400-48P Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-48P	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 1600-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle).	21.1R1
EX4400-48P-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	21.1R1

Table 15: EX4400-48P Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-48P): 7.22 kg) Switch with no power supply, fan module, or extension module installed (EX4400-48P-S): 5.88 kg) Fan module: 0.26 lb (0.12 kg) 1600 W AC power supply: 2.0 lb (0.91 kg) 2000 W DC power supply: 2.05 lb (0.93 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	10-Mbps/100-Mbps/1000-Mbps PoE ports: 48 100GbE QSFP28 ports: 2
PoE Ports (PoE-bt)	48—delivers upto 90 W per port
Throughput	324 Gbps—Unidirectional) 648 Gbps—Bbidirectional

Table 16: EX4400-48P Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-48P	Two power supply slots with one power supply preinstalled 1600 W AC (optional) Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-48P-S	Two power supply slots 2000 DC (optional) You need to order power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) fan modules separately and install them in these slots

EX4400-48XP Switch

Components on the Front and Rear Panels of an EX4400-48XP Switch

The following figure shows the components on the front panel of an EX4400-48XP switch.

Figure 26: Components on the Front Panel of an EX4400-48XP Switch Front panel diagram of Juniper Networks EX4400 PoE++ XP Ethernet Switch showing Ethernet ports, USB port, LED indicators, mode button, console port, and mounting brackets.

Front panel diagram of Juniper Networks EX4400 PoE++ XP Ethernet Switch showing Ethernet ports, USB port, LED indicators, mode button, console port, and mounting brackets.

1 — 10/100/1000BASE-T ports. These ports support PoE-bt.	4 — Port mode LEDs (labeled SPD, DX, EN, and POE)
2 — USB-C console port	5 — Factory reset/mode button
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)	6 — Extension module slot

Note:

We enabled the CLD LED feature in Junos OS Release 21.2R1.

The following figure shows the components on the rear panel of an EX4400-48XP switch with AC power supply. This model supports the 2000-W AC and the 2000-W DC power supply. The 2000-W DC power supply is separately orderable with the spare switch model - EX4400-48XP-S.

Figure 27: Components on the Rear Panel of an EX4400-48XP Switch Diagram of a network device rear panel with labeled ports and components for management, connectivity, cooling, and power supply.

Diagram of a network device rear panel with labeled ports and components for management, connectivity, cooling, and power supply.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — Power supply

Table 17: EX4400-48XP Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-48XP	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 2000-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	24.2R1-S1
EX4400-48XP-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	24.2R1-S1

Table 18: EX4400-48XP Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-48XP): 5.97 kg) Fan module: 0.26 lb (0.12 kg) 2000 W AC power supply: 2.05 lb (0.93 kg) 2000 W DC power supply: 2.05 lb (0.93 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	10-Mbps/100-Mbps/1000-Mbps PoE ports: 48 100GbE QSFP28 ports: 2
PoE Ports (PoE-bt)	48—delivers maximum value of 90W per port and an average of 75W per port when all 48 ports are loaded simultaneously using dual PSU at high voltage line.
Throughput	324 Gbps—Unidirectional) 648 Gbps—Bbidirectional

Table 19: EX4400-48XP Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-48XP	Two power supply slots with one power supply preinstalled 2000 W AC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-48XP-S	Two power supply slots 2000 W DC (optional) You need to order power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) fan modules separately and install them in these slots

EX4400-48T Switches

Components on the Front and Rear Panels of EX4400-48T and EX4400-48P Switches

Figure 28 shows the front view of an EX4400-48T switch with 48 RJ-45 ports.

Figure 28: Front View of an EX4400-48T Switch Juniper Networks EX4400 Ethernet Switch with 48 RJ-45 ports, 4 SFP+ ports, and status LEDs for enterprise networks.

Juniper Networks EX4400 Ethernet Switch with 48 RJ-45 ports, 4 SFP+ ports, and status LEDs for enterprise networks.

Figure 29 shows the rear view of an EX4400-48T switch with AC power supplies.

Figure 29: Rear View of an EX4400-48T Switch with AC Power Supplies Rear view of network switch showing console and management Ethernet ports, reset button, fan modules, power supply units, and status indicator LEDs for data center use.

Figure 30 shows the rear view of an EX4400-48T switch with DC power supplies.

Figure 30: Rear View of an EX4400-48T Switch with DC Power Supplies Rear view of a network device showing ports like CON and MGMT, USB, reset button, grounding point, cooling fans, and power supply units.

Figure 31 shows the components on the front panel of an EX4400-48T switch.

Figure 31: Components on the Front Panel of an EX4400-48T Switch Diagram of a Juniper Networks EX4400 Ethernet Switch showing front panel ports, USB port, system LEDs, console port, reset button, and serial number label for enterprise networking connectivity.

Diagram of a Juniper Networks EX4400 Ethernet Switch showing front panel ports, USB port, system LEDs, console port, reset button, and serial number label for enterprise networking connectivity.

1 — 10/100/1000BASE-T ports	4 — Port mode LEDs (labeled SPD, DX, and EN)
2 — USB-C console port	5 — Factory reset/mode button
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)	6 — Extension module slot

Note:

We enabled the CLD LED feature in Junos OS Release 21.2R1.

EX4400-48T model supports 550-W AC or DC power supplies. You must not install AC and DC power supplies in the same chassis.

Figure 32 shows the components on the rear panel of an EX4400-48T switch with an AC power supply.

Figure 32: Components on the Rear Panel of an EX4400-48T Switch with an AC Power Supply Rear view of a network device with labeled components: console port, management port, ethernet ports, reset button, expansion slots, airflow indicator, fan modules, power supply input, PSU, thumb screws, grounding point, status LEDs, and air intake/exhaust.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — 550-W AC power supply

Figure 33 shows the components on the rear panel of an EX4400-48T switch with a DC power supply.

Figure 33: Components on the Rear Panel of an EX4400-48T Switch with a DC Power Supply Rear view of a rack-mounted network device showing console and management ports, Ethernet and USB ports, reset button, network ports, cooling fans, power supply unit, empty power slot, and grounding point.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — 550-W DC power supply

Table 20 lists the components shipped with EX4400-48T switch models.

Table 21 describes the physical specifications, ports, and throughput of EX4400-48T switches.

Table 22 describes the power supply and cooling system specifications of EX4400-48T switch models

Table 20: EX4400-48T Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-48T	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-48T-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the blue handle)	A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the blue handle)	21.1R1
EX4400-48T-DC	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-48T-DC-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the blue handle)	A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the blue handle)	21.1R1
EX4400-48T-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	21.1R1

Table 21: EX4400-48T Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-48T): 6.71 kg Switch with no power supply, fan module, or extension module installed (EX4400-48T-AFI): 6.71 kg Switch with no power supply, fan module, or extension module installed (EX4400-48T-DC): 6.66 kg Switch with no power supply, fan module, or extension module installed (EX4400-48T-DC-AFI): 6.66 kg Switch with no power supply, fan module, or extension module installed (EX4400-48T-S): 5.58 kg Fan module: 0.26 lb (0.12 kg) 550 W AC power supply: 1.76 lb (0.8 kg) 550 W DC power supply: 1.65 lb (0.75 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	10/100/1000BASE-T ports: 48 100GbE QSFP28 ports: 2
Throughput	348 Gbps—Unidirectional) 696 Gbps—Bbidirectional

Table 22: EX4400-48T Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-48T	Two power supply slots with one power supply preinstalled 550 W AC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-48T-AFI	Two power supply slots with one power supply preinstalled 550 W AC Back-to-front airflow (indicated by the AIR IN label and the blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the blue handle)
EX4400-48T-DC	Two power supply slots with one power supply preinstalled 550 W DC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-48T-DC-AFI	Two power supply slots with one power supply preinstalled 550 W DC Back-to-front airflow (indicated by the AIR IN label and the blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the blue handle)
EX4400-48T-S	Two power supply slots You need to order AC or DC power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) or back-to-front airflow (AFI) fan modules separately and install them in these slots

EX4400-24MP Switch

Components on the Front and Rear Panels of EX4400-24MP Switches

Figure 34 shows the front view of an EX4400-24MP switch with 24 RJ-45 ports that support PoE-bt.

Figure 34: Front View of an EX4400-24MP Switch Juniper Networks EX4400 Multigigabit PoE++ Switch with RJ-45 and SFP+ ports, PoE support, and status LEDs.

Juniper Networks EX4400 Multigigabit PoE++ Switch with RJ-45 and SFP+ ports, PoE support, and status LEDs.

Figure 35 shows the rear view of an EX4400-24MP switch.

Figure 35: Rear View of an EX4400-24MP Switch Rear view of network switch showing console and management Ethernet ports, reset button, fan modules, power supply units, and status indicator LEDs for data center use.

Figure 36 shows the components on the front panel of an EX4400-24MP switch.

Figure 36: Components on the Front Panel of an EX4400-24MP Switch Front panel of Juniper Networks EX4400 Multigigabit PoE++ Ethernet Switch with labeled components: Network Ports, USB Console Port, System Status LEDs, Mode Button, Reset Button, Grounding Lug.

Front panel of Juniper Networks EX4400 Multigigabit PoE++ Ethernet Switch with labeled components: Network Ports, USB Console Port, System Status LEDs, Mode Button, Reset Button, Grounding Lug.

1 — 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports. These ports support PoE-bt.	4 — Port mode LEDs (labeled SPD, DX, EN, and POE)
2 — USB-C console port	5 — Factory reset/mode button
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)	6 — Extension module slot

Figure 37 shows the components on the rear panel of an EX4400-24MP switch. We ship the switch with one 1050-W power supply by default. You can order an additional power supply separately. The model also supports the 2000-W DC PSU, which you can order separately with the spare switch model- EX4400-24MP-S.

If you have Junos OS Release 22.3R1 or later installed, the switch supports the 1600-W AC power supply.

Note:

You must install only one model of power supply in a chassis. Do not mix different models.

Figure 37: Components on the Rear Panel of an EX4400-24MP Switch Rear view of a network device with labeled components including console port, management port, reset button, USB port, network ports, status LEDs, fan module, power supply unit, blank slot, and chassis grounding point.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — Power supply

Table 23 lists the components shipped with EX4400-24MP switch models.

Table 24 describes the physical specifications, ports, and throughput of EX4400-24MP switches.

Table 25 describes the power supply and cooling system specifications of EX4400-24MP switch models

Table 23: EX4400-24MP Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-24MP	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 1050-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-24MP-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	21.1R1

Table 24: EX4400-24MP Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-24MP): 7.07 kg Switch with no power supply, fan module, or extension module installed (EX4400-24MP-S): 6.06 kg Fan module: 0.26 lb (0.12 kg) 1050 W AC power supply: 1.98 lb (0.9 kg) 1600 W AC power supply: 2.0 lb (0.91 kg) 2000 W DC power supply: 2.05 lb (0.93 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps ports: 24
PoE Ports (PoE-bt)	24—delivers upto 90 W per port
Throughput	540 Gbps—Unidirectional) 1080 Gbps—Bbidirectional

Table 25: EX4400-24MP Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-24MP	Two power supply slots with one power supply preinstalled 1050 W AC (preinstalled) 1600 W AC (optional) Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-24MP-S	Two power supply slots 2000 W DC (optional) You need to order power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) fan modules separately and install them in these slots

EX4400-48MP Switch

Components on the Front and Rear Panels of EX4400-48MP Switches

Figure 38 shows the front view of an EX4400-48MP switch with 48 RJ-45 ports that support PoE-bt.

Figure 38: Front View of an EX4400-48MP Switch Juniper Networks EX4400 Ethernet Switch with PoE++ capabilities, featuring RJ-45, SFP/SFP+ ports, and status indicators.

Juniper Networks EX4400 Ethernet Switch with PoE++ capabilities, featuring RJ-45, SFP/SFP+ ports, and status indicators.

Figure 39 shows the rear view of an EX4400-48MP switch.

Figure 39: Rear View of an EX4400-48MP Switch Rear view of network switch showing console and management Ethernet ports, reset button, fan modules, power supply units, and status indicator LEDs for data center use.

Figure 40 shows the components on the front panel of an EX4400-48MP switch.

Figure 40: Components on the Front Panel of an EX4400-48MP Switch Diagram of Juniper Networks EX4400 switch front panel with labeled components: port panel, multigigabit ports, system LEDs, port status LEDs, USB port, console port, and fan module.

Diagram of Juniper Networks EX4400 switch front panel with labeled components: port panel, multigigabit ports, system LEDs, port status LEDs, USB port, console port, and fan module.

1 — 100-Mbps/1-Gbps/2.5-Gbps RJ-45 ports. These ports support PoE-bt.	5 — Port mode LEDs (labeled SPD, DX, EN, and POE)
2 — 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports. These ports support PoE-bt.	6 — Factory reset/mode button
3 — USB-C console port	7 — Extension module slot
4 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)

Figure 41 shows the components on the rear panel of an EX4400-48MP switch. This model supports the 1600-W AC power supply and the 2000-W DC power supply. The 2000-W DC power supply is separately orderable with the spare switch model - EX4400-48MP-S.

Figure 41: Components on the Rear Panel of an EX4400-48MP Switch Diagram of a network switch rear panel with labeled components: console port, management port, reset button, USB port, network interface slots, fan module slot, fan module, power supply unit slot, power supply unit, blank panel, grounding point, additional network interface slots, LED indicators, screw holes, and label or sticker area.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — Power supply

Table 26 lists the components shipped with EX4400-48MP switch models.

Table 27 describes the physical specifications, ports, and throughput of EX4400-48MP switches.

Table 28 describes the power supply and cooling system specifications of EX4400-48MP switch models

Table 26: EX4400-48MP Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-48MP	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 1600-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	21.1R1
EX4400-48MP-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	21.1R1

Table 27: EX4400-48MP Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-48MP): 7.35 kg Switch with no power supply, fan module, or extension module installed (EX4400-48MP-S): 6.34 kg Fan module: 0.26 lb (0.12 kg) 1600 W AC power supply: 2.0 lb (0.91 kg) 2000 W DC power supply: 2.05 lb (0.93 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps PoE ports: 12 100-Mbps/1-Gbps/2.5-Gbps PoE ports: 36
PoE Ports (PoE-bt)	48—delivers upto 90 W per port
Throughput	510 Gbps—Unidirectional) 1020 Gbps—Bidirectional

Table 28: EX4400-48MP Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-48MP	Two power supply slots with one power supply preinstalled 1600 W AC (optional) Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-48MP-S	Two power supply slots 2000 W DC (optional) You need to order power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) fan modules separately and install them in these slots

EX4400-48MXP Switch

Components on the Front and Rear Panels of EX4400-48MXP Switches

The following figure shows the components on the front panel of an EX4400-48MXP switch.

Figure 42: Components on the Front Panel of an EX4400-48MXP Switch Juniper Networks EX4400 Ethernet Switch front panel with PoE++ ports, expansion slot, USB port, LED indicators, reset button, console port, and grounding point.

Juniper Networks EX4400 Ethernet Switch front panel with PoE++ ports, expansion slot, USB port, LED indicators, reset button, console port, and grounding point.

1 — 100-Mbps/1-Gbps/2.5-Gbps RJ-45 ports. These ports support PoE-bt.	5 — Port mode LEDs (labeled SPD, DX, EN, and POE)
2 — 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports. These ports support PoE-bt.	6 — Factory reset/mode button
3 — USB-C console port	7 — Extension module slot
4 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD)

The following figure shows the components on the rear panel of an EX4400-48MXP switch. This model supports 2000-W AC and 2000-W DC power supplies. The 2000-W DC power supply is separately orderable with the spare switch model - EX4400-48MXP-S.

Figure 43: Components on the Rear Panel of an EX4400-48MXP Switch Diagram of a network switch rear panel with labeled components: console port, management port, reset button, USB port, network interface slots, fan module slot, fan module, power supply unit slot, power supply unit, blank panel, grounding point, additional network interface slots, LED indicators, screw holes, and label or sticker area.

1 — Serial number ID label	9 — Empty slot for power supply
2 — Console port (labeled CON)	10 — Power supply rating label
3 — Management port (labeled MGMT)	11 — ESD point
4 — USB-A port	12 — QSFP28 port LEDs
5 — QSFP28 ports	13 — Reset button
6 — CLEI code label	14 — Protective earthing terminal
7 — Fan module	15 — Claim code label
8 — Power supply

Table 29: EX4400-48MXP Switch Models, Shipped Components, and First Junos Release
Model Number	Fan Modules	Power Supply	First Junos OS Release
EX4400-48MXP	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	A 2000-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the orange handle)	24.2R1-S1
EX4400-48MXP-S	We don't ship fan modules for this model by default; you must order two fan modules separately.	We don't ship power supplies for this model by default; you must order them separately.	24.2R1-S1

Table 30: EX4400-48MXP Switches—Physical Specifications, Ports, Throughput
Item	Description
Chassis Dimensions	Height	1.72 in. (4.37 cm)
	Width	17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm).
	Depth	15.71 in. (39.9 cm)—With no power supply, fan module, or extension module installed 16.93 in. (43 cm)—With power supply and fan module installed 17.35 in. (44.07 cm)—With power supply, fan module, and extension module installed
Weight	Switch with no power supply, fan module, or extension module installed (EX4400-48MXP): 7.35 kg Fan module: 0.26 lb (0.12 kg) 2000 W AC power supply: 2.05 lb (0.93 kg) 2000 W DC power supply: 2.05 lb (0.93 kg) 1x100GbE QSFP28 extension module (model number: EX4400-EM-1C): 0.26 lb (0.12 kg) 4x10GbE SFP+ extension module (model number: EX4400-EM-4S): 0.2 lb (0.09 kg) 4x25GbE SFP28 extension module (model number: EX4400-EM-4Y): 0.29 lb (0.13 kg) We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot.
Built-in ports	100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps PoE ports: 12 100-Mbps/1-Gbps/2.5-Gbps PoE ports: 36 100GbE QSFP28 ports: 2
PoE Ports (PoE-bt)	48—delivers up to maximum value of 90W per port and an average of 75W per port when all 48 ports are loaded simultaneously using dual PSU at high voltage line.
Throughput	510 Gbps—Unidirectional) 1020 Gbps—Bidirectional

Table 31: EX4400-48MXP Switch Models, Power Supplies, Cooling System
Model	Power Supply Specifications	Cooling System Specifications
EX4400-48MXP	Two power supply slots with one power supply preinstalled 2000 W AC Front-to-back airflow (indicated by the AIR OUT label and the orange handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the orange handle)
EX4400-48MXP-S	Two power supply slots 2000 W DC (optional) You need to order power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFO) fan modules separately and install them in these slots

Note:

EX4400 could be stuck during reboot, if one end of a twisted pair cable is connected to primary console port (RJ45) and the other end is left dangling/unconnected. This is noticed with twisted pair cables of length 15ft and above only. And no issues noticed when the box is up and running even if there is a dangling twisted pair cable. So, it is not recommended to use twisted pair cable of length 15 ft and above. And if it is unavoidable to use twisted pair cable of length 15 ft and above, atleast ensure that both ends of the the cable are connected or both ends disconnected. Connecting one end of such a cable to the switch and leaving the other end dangling can cause this issue during reboot.

ON THIS PAGE

EX4400 Models and Specifications

EX4400-24P Switch

Components on the Front and Rear Panels of EX4400-24P Switches

EX4400-24T Switches

Components on the Front and Rear Panels of EX4400-24T

EX4400-24X Switch

Components on the Front and Rear Panels of EX4400-24X Switches

EX4400-48F Switches

Components on the Front and Rear Panels of EX4400-48F Switches

EX4400-48P Switch

Components on the Front and Rear Panels of an EX4400-48P Switch

EX4400-48XP Switch

Components on the Front and Rear Panels of an EX4400-48XP Switch

EX4400-48T Switches

Components on the Front and Rear Panels of EX4400-48T and EX4400-48P Switches

EX4400-24MP Switch

Components on the Front and Rear Panels of EX4400-24MP Switches

EX4400-48MP Switch

Components on the Front and Rear Panels of EX4400-48MP Switches

EX4400-48MXP Switch

Components on the Front and Rear Panels of EX4400-48MXP Switches