G.Skill F3-12800CL9D-4GBRL Ripjaws RL DDR3 RAM 4GB (2x2GB) Dual 1600Mhz CL9

Size - 4GB (2x2GB), Channel - Dual, Speed - 1600Mhz, Latency - CL9, Timing - 9-9-9-24, Voltage - 1.5V