Kingston ValueRAM's KVR21R15S8K4/16 is a kit of four 512Mx72-bit (4GB) DDR4-2133 / PC4-17000 CL15 SDRAM registered w/ parity, 1Rx8, ECC, memory module, based on nine 512M x 8-bit FBGA components per module. Total kit capacity is 16GB. The SPD is programmed to JEDEC standard latency DDR4-2133 timing of 15-15-15 at 1.2V. Each 288-pin DIMM uses gold contact fingers.