Corsair XMS3 12GB (6x2GB) DDR3 1600 MHz (PC3 12800) Desktop Memory (HX3X12G1600C9) Corsairs enthusiast 12GB kit solution running at 1600MHz on the Intel Core i7 processor platforms. Guaranteed to work in all DDR3 Triple Kit Intel Core i7 Solutions. Each 6 X 2GB kit is tested at 1600MHz then Packaged together immediately following system test Tested together at 1600MHz, Vdimm = 1.65V, at latency settings of 9-9-9-24 on X58-based motherboards. Lifetime Warranty! Memory Type: DDR3; Speed: 1600MHz