Samsung M321RBJA0M22-CLP 256GB DDR5-6400 Quad-Rank RDIMM for High-Performance Server Memory Upgrades Recommend
Samsung M386AAG40BM3-CWEZY - 128GB DDR4-3200MHz ECC Registered CL22 288-Pin RDIMM Memory Module Recommend
Samsung M386A8K40CM2-CVFC0 - 64GB DDR4-2933/PC4-23400 RDIMM 288-Pin CL21 Quad Rank x4 ECC Registered Memory Module Recommend
4X77A12187 -Lenovo  ThinkSystem 128GB TruDDR4 Performance+ 2933MHz (4Rx4 1.2V) 3DS RDIMM Recommend