G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model (F3-12800CL9D-8GBRL) Timing9-9-9-24-2N Capacity8GB (2 x 4GB) Cas Latency9 Voltage1.5V