HP 664688-001 Compatible Factory Original 4GB DDR3-1333MHz Registered ECC Single Rank x4 1.35V 240-pin RDIMM

AddOn Networks 664688-001-AM. Component for: PC/Server, Internal memory: 4 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, Memory form factor: 240-pin DIMM, ECC