Hyperx savage 8gb kit 2x4gb ddr4 2666mhz intel xmp cl13 dimm memory hyperx hx426c13sb2k28 is a kit of two 512m x 64 bit 4gb ddr4 2666 cl13 sdram synchronous dram 1rx8 memory modules based on eight 512m x 8 bit fbga components per module total kit capacity is 8gb each module supports intel xmp extreme memory profiles each module has been tested to run at ddr4 2666 at a low latency timing of 13 15 15 at 135v the spds are programmed to jedec standard latency ddr4 2133 timing of 1