Compatible With HP Part Number: 628974-081 16GB PC3-10600 DDR3-1333 2Rx4 1.35v ECC Registered RDIMM For HP Servers only. Not compatible with HP laptops and home computers. Lifetime Warranty Third Party; 100% Compatible 628974-081-PCW is a HP Compatible 16GB PC3-10600 DDR3-1333 2Rx4 1.35v ECC RDIMM (generic for HP PN# 628974-081). This is a 'major brand' module kit (from either Samsung, Micron, Hynix, Infineon, etc.), equivalent in every way to HP original memory. All PCW modules meet or exceed OEM specifications and JEDEC standards.