Kingston Technology 16GB (1x16 GB) 1333MHZ DDR3 PC3-10600 Reg ECC Low Voltage DIMM for Select HP/Compaq Servers KTH-PL313LV/16G One 16GB Module of 1333MHZ DDR3 Registered ECC Low Voltage Memory for HP/Compaq 627808-B21 (HP/Compaq); 627812-B21 (HP/Compaq); 647901-B21 (HP/Compaq); A0R59A (HP/Compaq) Backed by a lifetime warranty and free technical support From the industry leader in PC memory Designed and tested for compatibility in various HP/Compaq devices