8Gb (4X2Gb) Memory Ram Compatible with Hp/Compaq Workstation Xw6600 (Ddr2-Pc5300, Fully Buff For Servers Only By CMS B119 240PIN DDR2 DIMM ECC FULLY BUFFERED PC2-5300 , DDR2-667MHZ 4 Pieces Kit This Memory is intended for Server Only. Not for Desktop