Corsair Vengeance Red 16GB (4x4GB)  DDR3 2133 MHz (PC3 17000) Desktop Memory Density: 16GB (4x4GB Module) Speed: 2133MHz Timing: 11-11-11-27 Pin Out: 240 Pin Voltage: 1.5V Limited Lifetime Warranty Max Memory Speed PC3 1700. Memory Type: DDR3; Speed: 2133MHz