Part 3C16820 is compatible in the following Models:

HPE 4005 Switch Series

HPE SWITCH 4005,CHASSIS - JE801A
HPE SWITCH 4005 FENTX KIT - JE809A
HPE SWITCH 4005 FENTX/FX KIT - JE810A
HPE SWITCH 4005,10PORT GEN BT STARTER KIT - JE811A
HPE SWITCH 4005,10PORT GEN SX,STARTER KIT - JE812A