Product Detail 8GB KIT OF 2 ( 2 X 4GB ) DDR2 DIMM 800MHZ PC2-6400 / PC2-6300 240PIN Well Tested. Non-ECC Non parity Voltage 1.8V. SUPPORTS DUAL CHANNEL TRIPLE CHANNEL AND QUAD CHANNEL Lifetime Warranty GOLD LEADS . The "8GB 2 X 4GB DDR2 DIMM 240 PIN 800Mhz PC2 6400 PC2 6300 8 GB - CL 5" is best product for you. We recommended 8GB 2 X 4GB DDR2 DIMM 240 PIN 800Mhz PC2 6400 PC2 6300 8 GB - CL 5