MX960 Chassis Serial Number and Agency Label
The chassis serial number label and agency label are located on the side of the chassis. See Figure 1 for older legacy routers, and see Figure 2 for routers shipping with the new power supplies (MX960-PSM-5K-AC or MX960-PSM-HV).
If you are installing the new power supplies (MX960-PSM-5K-AC or MX960-PSM-HV) in your existing chassis, you need to replace the old agency label with the new supplied agency label. The new agency label does not show the power rating, see the front of the power supply for the power rating.