Kingston ValueRAM's KVR21E15S8/4 is a 512Mx72-bit (4GB) DDR4-2133 / PC4-17000 CL15 SDRAM 1Rx8, ECC, memory module, based on nine 512Mx8-bit FBGA components. 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.