G.SKILL Sniper Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000) Desktop Memory Model F3-17000CL11D-8GBSR Sniper Series F3-17000CL11D-8GBSR; 8GB (2 x 4GB), Dual Channel Kit 240-Pin DDR3 SDRAM, DDR3 2133 (PC3 17000) Cas Latency: 11; Timing: 11-11-11-30 Voltage: 1.6V; ECC: No; Buffered/Registered: Unbuffered; Heat Spreader: Yes.