16GB DDR4-3200 1.2V ECC Registered VLP Module
16GB Module - DDR4 - ECC - Registered - 3200MT/s - PC4-25600 - 23ns CAS Latency - 1.2V
4GB DDR4-2133 ECC UDIMM 1.2v 1R module
4GB Module - DDR4 - ECC - Unbuffered - 2133MT/s - PC4-17000 - 15ns CAS Latency - 1.2V - 2 Year Depot Carry-In Mfg. Warranty