Part
577501-001
is compatible in the following Models:
HPE ProLiant DL165 G5 Server
HPE DL165G5 2P 2.1 4x1TB HDD 32GB Mem US - 583308-001
HPE ProLiant DL185 G5 Server
HPE DL185G5 12x1TB HDD 32GB Memory US Server - 531240-001