Corsair CMX8GX3M2B1333C9 8GB (2 x 4 GB) DDR3 1333 MHz Unbuffered CL9 DIMM Memory Kit for Intel Core i3/i5/i7 Dual Channel (PC3 10600) 1.5V High performance XMS 8GB kit for the Intel Core i7, i5 and i3 Dual Channel processors and platforms Fast 1333MHz performance using 8GB of memory Low 9-9-9-24 latency Memory Type: DDR3; Speed: 1333MHz