64GB DDR4 2666 ECC REG RDIMM 1.2v Module
64GB Module - DDR4 - ECC - Registered - 2666MT/s - PC4-21300 - 19ns CAS Latency - 1.2V - 1 Year Depot Carry-In Mfg. Warranty
64GB DDR5-4800 ECC REG RDIMM 1.1V Module
64GB Module - DDR5 - ECC - Registered - 4800MT/s - PC5-38400 - 38ns CAS Latency - 1.1V