512MB PC2-3200 DDR2-400 ECC RDIMM
512MB Module - DDR2 - ECC - Registered - 400MT/s - PC2-3200 - 3ns CAS Latency - 1.8V
16GB DDR4 2666 ECC Registered RDIMM VLP
16GB Module - DDR4 - ECC - Registered - 2400MT/s - PC4-19200 - 17ns CAS Latency - 1.2V - Very Low Profile - 1 Year Depot Carry-In Mfg. Warranty