64GB DDR4-3200 ECC Reg RDIMM 1.2V LP Module
Low-Profile - 64GB LP Module - DDR4 - ECC - Registered - 3200MT/s - PC4-25600 - 23ns CAS Latency - 1.2V
64GB DDR4 2666V ECC LRDIMM 2Rx4 1.2V Module
64GB Module - DDR4 - ECC - Load Reduced - 2666MT/s - PC4-21300 - 1.2V