Intel Optane 3DXP 256GB DDR4 3200 1.2v Persistent Memory Module
256GB Module - DDR4 - ECC - Registered - Optane DDR4 3200 38400 - ( for Optane Supported \motherboards Only)
4GB DDR4-2133 ECC UDIMM 1.2v 1R module
4GB Module - DDR4 - ECC - Unbuffered - 2133MT/s - PC4-17000 - 15ns CAS Latency - 1.2V