500660-B21 4GB HP Proliant PC3-8500 CL7 Registered ECC DDR3-1066 240-pin DIMM 3rd Party by GiGARAM This module may be manufactured by Micron, Samsung, Infineon, Hynix or Gigaram. Equivalent OEM part number: 500660-B21, KTH-PL310Q/4G. Compatible with Compaq ProLiant BL280c G6 (DDR3-1066MHz), BL460c G6 (DDR3-1066MHz), BL490c G6 (DDR3-1066MHz), BL620c G7 (DDR3-1066MHz) (Reg.ECC), BL680c G7 (DDR3-1066MHz) (Reg.ECC), BL685c G7 (DDR3-1066MHz) (Reg.ECC), DL120 G6 (DDR3-1066MHz) (Reg.ECC), DL160 G6 (DDR3-1066MHz), DL160 Gen8 (G8) (DDR3-1066MHz) (Reg.ECC), DL180 G6 (DDR3-1066MHz), DL320 G6 (DDR3-1066MHz), DL360 G6 (DDR3-1066MHz) (Reg.ECC), DL360e Gen8 (G8) (DDR3-1066MHz) (Reg.ECC), DL360p Gen8 (G8) (DDR3-1066MHz) (Reg.ECC), DL370 G6 (DDR3-1066MHz), DL380 G6 (DDR3-1066MHz), DL380 G7 (DDR3-1066MHz), DL380p Gen8 (G8) (DDR3-1066MHz) (Reg.ECC), DL385 G7 (DDR3-1066MHz), DL580 G7 (DDR3-1066MHz), DL585 G7 (DDR3-1066MHz), DL560 Gen8 (G8) (DDR3-1066MHz) (Reg.ECC), DL1000/DL170h G6 (DDR3-1066MHz), DL980 G7 (DDR3-1066MHz), ML150 G6 (DDR3-1066MHz), ML330 G6 (DDR3-1066MHz), ML350 G6 (DDR3-1066MHz), ML370 G6 (DDR3-1066MHz), SL160z G6 (DDR3-1066MHz), SL165z G7 (DDR3-1066MHz), SL170z G6 (DDR3-1066MHz), SL2x170z G6 (DDR3-1066MHz), Hewlett Packard Z800 Workstation (DDR3-1066MHz). 100% Compatible Lifetime Warranty