OCZ 4 GB DDR2 PC2-8500 Platinum Low Voltage Dual Channel Memory Kit OCZ2P1066LV4GK 1066MHz DDR2 CL 5-5-5-18/1.80v Low Voltage Operation Unbuffered/240 Pin DIMM /1.85v EVP** OCZ Lifetime Warranty Available in 4GB (2x2048MB) Dual Channel Kits