Intel Optane 3DXP 256GB DDR4 2666 1.2v Persistent Memory Module
256GB Module - DDR4 - ECC - Registered - 2666MT/s - Optane DDR4 2666 21300 - ( for Optane Supported \motherboards Only)
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)
512MB PC2-5300 ECC Registered DDR2-667
512MB PC2-5300 DDR2-667 Registered ECC (1-Rank) (Non-Returnable/Non-Exchangable)