HP Compatible 8GB PC3-10600 DDR3-1333 2Rx4 1.35v ECC Registered RDIMM (HP PN# 647650-071) Compatible With HP Part Number: 647650-071 8GB 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