Kingston Technology HyperX Genesis 10th Anniversary Series 8GB Kit (2x4GB) DDR3 1866MHz PC3-15000 CL9 DIMM XMP Memory KHX18C9X3K2/8X Features a Limited Edition silver heat spreader XMP profiles - easy to enable, factory configured for best maximum performance Low profile to fit under large CPU coolers Reliable and Compatible - 100-percent factory tested with all popular brands of motherboards Non-ECC 1866MHz 240-pin Unbuffered DIMM Guaranteed with the Kingston lifetime warranty and free technical support