Product Detail 8GB DDR3 1600MHz Dual Channel kit Suitable for Intel LGA1156 / AMD AM3 CPUs Timings 9-9-9-24, 1.5V PC3-12800 specification Two matched 4GB modules with G.Skill Ripjaw heatsinks . The "G.Skill Ripjaws - Memory - 8 GB : 2 x 4 GB - DIMM 240-pin - DDR3 - 1600 MHz / PC3-12800 - CL9 - 1.5 V - unbuffered - non-ECC" is best product for you. We recommended G.Skill Ripjaws - Memory - 8 GB : 2 x 4 GB - DIMM 240-pin - DDR3 - 1600 MHz / PC3-12800 - CL9 - 1.5 V - unbuffered - non-ECC