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
EX4400-48F

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

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

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

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 and 1600-W AC power supplies. 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

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 — 1050-W AC 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 Juniper Gold handle)	A 1050-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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) 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)
EX4400-24P-S	Two power supply slots You need to order AC power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFI) 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

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

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

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

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

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

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 Juniper Gold handle)	A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	21.1R1
EX4400-24T-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	21.1R1
EX4400-24T-DC	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	21.1R1
EX4400-24T-DC-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 Juniper Azure Blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 Juniper Azure Blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 (AFI) or back-to-front airflow (AFO) 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

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

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

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

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

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 Juniper Gold handle)	A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	21.1R1
EX4400-24X-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	23.1R1
EX4400-24X-DC	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	23.1R1
EX4400-24X-DC-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 Juniper Azure Blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 Juniper Azure Blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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

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

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

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

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

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

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
EX4400-48T	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	21.1R1
EX4400-48T-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	21.1R1
EX4400-48T-DC	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	21.1R1
EX4400-48T-DC-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 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	100/1000BASE-X ports: 36 1000/10000BASE-X: 12
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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 Juniper Azure Blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 Juniper Azure Blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 (AFI) or back-to-front airflow (AFO) 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

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

Figure 23: Rear View of an EX4400-48P Switch

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

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 only 1600-W AC power supply.

Figure 25: Components on the Rear Panel of an EX4400-48P Switch

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 — 1600-W AC 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 Juniper Gold handle)	A 1600-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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) 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)
EX4400-48P-S	Two power supply slots You need to order AC power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFI) 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 26 shows the front view of an EX4400-48T switch with 48 RJ-45 ports.

Figure 26: Front View of an EX4400-48T Switch

Figure 27 shows the rear view of an EX4400-48T switch with AC power supplies.

Figure 27: Rear View of an EX4400-48T Switch with AC Power Supplies

Figure 28 shows the rear view of an EX4400-48T switch with DC power supplies.

Figure 28: Rear View of an EX4400-48T Switch with DC Power Supplies

Figure 29 shows the components on the front panel of an EX4400-48T switch.

Figure 29: Components on the Front Panel of an EX4400-48T Switch

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

Figure 30: Components on the Rear Panel of an EX4400-48T Switch with an AC 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 — 550-W AC power supply

Figure 31 shows the components on the rear panel of an EX4400-48T switch with a DC power supply.

Figure 31: Components on the Rear Panel of an EX4400-48T Switch with a DC 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 — 550-W DC power supply

Table 17 lists the components shipped with EX4400-48T switch models.

Table 18 describes the physical specifications, ports, and throughput of EX4400-48T switches.

Table 19 describes the power supply and cooling system specifications of EX4400-48T switch models

Table 17: 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 Juniper Gold handle)	A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	21.1R1
EX4400-48T-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	21.1R1
EX4400-48T-DC	Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)	21.1R1
EX4400-48T-DC-AFI	Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle)	A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 18: 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 19: 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 Juniper Azure Blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 Juniper Azure Blue handle)	Two fan module slots with fan modules preinstalled Back-to-front airflow (indicated by the AIR IN label and the Juniper Azure 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 (AFI) or back-to-front airflow (AFO) fan modules separately and install them in these slots

EX4400-24MP Switch

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

Figure 32 shows the front view of an EX4400-24MP switch with 24 RJ-45 ports that support PoE-bt.

Figure 32: Front View of an EX4400-24MP Switch

Figure 33 shows the rear view of an EX4400-24MP switch.

Figure 33: Rear View of an EX4400-24MP Switch

Figure 34 shows the components on the front panel of an EX4400-24MP switch.

Figure 34: Components on the Front Panel of an EX4400-24MP Switch

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 35 shows the components on the rear panel of an EX4400-24MP switch. This model 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 35: Components on the Rear Panel of an EX4400-24MP Switch

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 — 1050-W AC power supply

Table 20 lists the components shipped with EX4400-24MP switch models.

Table 21 describes the physical specifications, ports, and throughput of EX4400-24MP switches.

Table 22 describes the power supply and cooling system specifications of EX4400-24MP switch models

Table 20: 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 Juniper Gold handle)	A 1050-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 21: 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) 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 22: 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)
EX4400-24MP-S	Two power supply slots You need to order AC power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFI) fan modules separately and install them in these slots

EX4400-48MP Switch

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

Figure 36 shows the front view of an EX4400-48MP switch with 48 RJ-45 ports that support PoE-bt.

Figure 36: Front View of an EX4400-48MP Switch

Figure 37 shows the rear view of an EX4400-48MP switch.

Figure 37: Rear View of an EX4400-48MP Switch

Figure 38 shows the components on the front panel of an EX4400-48MP switch.

Figure 38: Components on the Front Panel of an EX4400-48MP Switch

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 39 shows the components on the rear panel of an EX4400-48MP switch. This model supports only 1600-W AC power supply.

Figure 39: Components on the Rear Panel of an EX4400-48MP Switch

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 — 1600-W AC power supply

Table 23 lists the components shipped with EX4400-48MP switch models.

Table 24 describes the physical specifications, ports, and throughput of EX4400-48MP switches.

Table 25 describes the power supply and cooling system specifications of EX4400-48MP switch models

Table 23: 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 Juniper Gold handle)	A 1600-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold 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 24: 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) 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 25: 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 Juniper Gold handle)	Two fan module slots with fan modules preinstalled Front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle)
EX4400-48MP-S	Two power supply slots You need to order AC power supplies separately and install them in these slots	Two fan module slots You need to order front-to-back airflow (AFI) fan modules separately and install them in these slots

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

EX4400-48T 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