HP Compatible 16GB PC3-14900 DDR3-1866 2Rx4 1.5v ECC Registered RDIMM (HP PN# 712383-081) Compatible With HP Part Number: 712383-081 16GB PC3-14900 DDR3-1866 2Rx4 1.5v ECC Registered RDIMM For HP Servers only. Not compatible with HP laptops and home computers. Lifetime Warranty Third Party; 100% Compatible