Corsair CMX8GX3M1A1333C9 XMS3 8GB (1x8GB) DDR3 1333 MHz (PC3 10666) Desktop Memory 1.5V Density: 8GB (1x8GB Module) Speed: 1333MHz Timing: 9-9-9-24 Pin Out: 240 Pin Voltage: 1.5V Limited Lifetime Warranty Memory Type: DDR3; Speed: 1333MHz