Komputerbay 4GB (2x 2GB) DDR2 800MHz PC2-6300 6400 RAM (240 Pin) DIMM 5-5-5-18 Desktop Memory with Heatspreaders Komputerbay 4GB (2x 2GB) DDR2 800MHz PC2-6300 6400 RAM (240 Pin) DIMM 5-5-5-18 Desktop Memory with Heatspreaders Non-ECC Non-parity Supports Dual Channel Compatible with DESKTOPS THAT SUPPORT DDR2 240PIN MEMORY Lifetime Warranty