Hyperx hx318c9srk28 is a kit of two 512m x 64 bit 4gb ddr3 1866 cl9 sdram synchronous dram 1rx8 memory module based on eight 512m x 8 bit fbga components per module each module kit supports intel xmp extreme memory profiles total kit capacity is 8gb each module has been tested to run at ddr3 1866 at a low latency timing of 9 10 11 at 15v the spds are programmed to jedec standard latency ddr3 1600 timing of 11 11 11 at 15v each 240 pin dimm uses gold contact fingers