Corsair XMS3 12 GB 6 x 2 GB PC3-15000 1866mhz 240-pin CAS 9 Dual Channel DDR3 Core i3, i5, i7 Memory Kit CMT12GX3M6A1866C9 Ultra-high performance 12 GB XMS3 DDR3 kit for Intel Core i3, i5, i7 Dual Channel Channel processors 1866MHz, 9-9-9-24, 1.65V, with Intel XMP support Six matched 2 GB modules for use in high performance Intel Core i7 Triple Channel systems Includes Dominator GT High Performance Memory Airflow Fan Backed by Corsair: A respected name with a passion for quality products, and great service and support