KOMPUTERBAY 4GB (2X 2GB) DDR2 667MHz PC2-5300 PC2-5400 (240 PIN) DIMM Desktop Memory with Samsung Semiconductors KOMPUTERBAY 4GB (2X2GB) DDR2 667MHz PC2-5300 PC2-5400 (240 PIN) DIMM Desktop Memory with Samsung Semiconductors 100% Compatible with Desktops. BRAND NEW 4GB PC2-5300 PC2-5400 DDR2 667 Mhz. Supports Dual Channel. Compatible with desktops that support DDR2 240PIN memory Lifetime Warranty