Ballistix Tactical Tracer 8GB Kit (4GBx2) DDR3 1866 MT/s (PC3-14900) CL9 @1.5V UDIMM 240-Pin BLT2KIT4G3D1869DT2TXRG Designed for performance enthusiasts, gamers and power users Enhanced heat spreader Crucial: a trusted name in memory Advanced Speeds and timings (XMP Profile) Red and Green LEDs