G.Skill F3-12800CL9Q-16GBRL Ripjaws Series 16GB (4x4GB) DDR3-1600 PC3 12800 Desktop RAM 16GB (4 x 4GB), Quad Channel Kit DDR3 1600 (PC3 12800) Timing: 9-9-9-24-2N; Voltage: 1.5V F3-12800CL9Q-16GBRL 240-Pin DDR3 SDRAM