This is the Supermicro AC MCP-250-10133-0N 180W DC power adapter. It is designed to efficiently convert AC power to DC power for compatible Supermicro systems. Included is a 6-foot, 18AWG US power cord for convenient connection.
MCP-250-10133-0N - Supermicro AC MCP-250-10133-0N 180W DC power adapter w US power cord 18AWG 6ft