ValueRAM's KVR21R15D4K4/64 is a kit of four 2G x 72-bit
(16GB) DDR4-2133 CL15 SDRAM (Synchronous DRAM)
registered w/ parity, 2Rx4, ECC, memory module, based on
thirty-six 1G x 4-bit FBGA components per module. Total kit
capacity is 32GB. 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.