Corsair Vengeance Pro 8GB (2x4GB) DDR3 2133 MHz (PC3 17000) Desktop 1.5V Density: 8GB (2x4GB) Speed: 2133MHz Tested Latency: 11-11-11-27 Voltage: 1.5V Format: DIMM Pin Out: 240 Pin Intel XMP 1.3. Memory Type: DDR3; Speed: 2133MHz Limited Lifetime Warranty