Corsair CMZ12GX3M3A1600C9 Vengeance 12GB (3x4GB) DDR3 1600 MHz (PC3 12800) Desktop Memory 1.5V 12GB (3x4GB) DDR3 for Intel processors supporting three memory channels. Speed: 1600MHz Timing: 9-9-9-24 Voltage: 1.5V Vengeance heat spreader for styling and performance Intel XMP (Extreme Memory Profile) Support Lifetime Warranty. Memory Type: DDR3; Speed: 1600MHz