Corsair 4GB (2x 2GB) DDR3 1600 M Hz/PC3-12800 XMS3 i 5 Memory Kit CL9 (9-9-9-24) 1.65V Corsair.s mainstream memory solution for Intel.s new Core i 5 & Core i 7 dual channel DDR3 processors. The XMS3 family is Corsair.s mainstream line of performance DDR3 memory. These modules allow users to experience outstanding memory performance & stability. Available in Corsair.s new XMS heatspreaders, each module is built using carefully selected RAMs. This 4GB twin kit memory solution has been designed specifically to support the Intel Core i 5 & Core i 7 dual channel memory DDR3 solutions. This solution runs at an incredibly fast 1600 M Hz at CAS latency of 9-9-9-24. So not only do you get to run your Intel Core i 5 or Core i 7 dual channel memory system at 1600 M Hz but with these tight Latency timings your system performance will rock. Key Features 4GB memory kit (2 x 2GB) for use with Dual Channel DDR3 Intel Core i 5 & Core i 7 processors 1600 M Hz Latency of 9-9-9-24 for maximum reliability & performance XMS Heat Spreader Voltage: 1.65V Limited Lifetime Warranty