Crucial Ballistix Elite 8GB Kit (4GBx2) DDR3 2000 MT/s (PC3-16000) CL9 @1.65V UDIMM w/XMP/TS 240-Pin BLE2CP4G3D2001CE1TX0 Designed for extreme enthusiasts, gamers and over - clockers Advanced heat spreader Thermal sensor allows real-time temperature monitoring Custom Ballistix M.O.D. utility to monitor temperature Advanced speeds and timings (XMP Profile)