Part JD209A is compatible in the following Models:

HPE FlexNetwork 6600 Router Series

HPE A6608 Router Chassis - JC177B

HPE A6604 Router Chassis - JC178B

HPE FlexNetwork 7500 Switch Series

HPE A7502 Switch Chassis - JD242B

HPE 7502 Switch Chassis - JD242C

HPE A7503 Switch Chassis w/1 Fabric Slot - JD243B

HPE Networking Switch Power Supplies

HPE A7500 650W DC Power Supply - JD209A