Product Detail 4GB DDR3 Dual Channel kit Two matched 2GB modules 1800MHz, PC3-14400 Timings 7-8-7-24-2N, 1.65V Designed for Phenom II x6 only . The "G.SKILL Flare 4GB 2 x 2GB 240-Pin DDR3 1800MHz PC3 14400 F3-14400CL9D-4GBFLS" is best product for you. We recommended G.SKILL Flare 4GB 2 x 2GB 240-Pin DDR3 1800MHz PC3 14400 F3-14400CL9D-4GBFLS