Corsair Vengeance Pro Series 8GB (2x4GB) DDR3 1600 MHZ (PC3 12800) Desktop Memory 1.5V Density: 8GB (2x4GB) Speed: 1600MHz Tested Latency: 9-9-9-24 Voltage: 1.5V Format: DIMM Pin Out: 240 Pin Limited Lifetime Warranty. Memory Type: DDR3; Speed: 1600MHz