The HPE ProLiant DL20 Gen11 External OCP Cable Kit (P65411-B21) is an option for supporting OCP networking adapters in a DL20 Gen11 server. It provides the external OCP cabling option identified by HPE for this server family.
This kit is listed as a cable option, with the specific role of enabling support for OCP networking adapters. Its exact reference helps distinguish it from other DL20 Gen11 kits, including separate cable options for storage controllers and PCIe controllers.