Komputerbay 1GB DDR2 PC2 8500 1066Mhz 240 Pin DIMM 1 GB - comes with Heat Spreader for extra Cooling Komputerbay 1GB DDR2 PC2 8500 1066Mhz 240 Pin DIMM 1 GB - comes with Heat Spreader for extra Cooling Well Tested. Non-ECC Non parity SUPPORTS DUAL CHANNEL Lifetime Warranty Memory Speed: 1066 MHz