Crucial Ballistix Elite 6GB Kit (2GBx3) DDR3 1600 MT/s (PC3-12800) CL8 @1.5V UDIMM w/XMP/TS 240-Pin BLE3CP2G3D1608DE1TX0 Designed for extreme enthusiasts, gamers and overclockers Advanced Speed and Timings (XMP Profile) Thermal Sensor allows real time temperature monitoring Limited Lifetime Warranty