DDR4_128GB Hot Supermicro 128GB 288-Pin DDR4 2933 (PC4 23400) Server Memory (MEM-DR412L-SL01-ER29) - 128GB DDR4 2933 Server Memory - Cas Latency 21 - 1.2V 4Rx4 ECC RDIMM - Supermicro Certified Contact Hot Supermicro 128GB 288-Pin DDR4 2666 (PC4-21300) Server Memory (MEM-DR412L-CL02-LR26) - 128GB DDR4 2666 Server Memory - Cas Latency 22 - 1.2V 8Rx4 3DS 4H TSV ECC LRDIMM - Supermicro Certified Contact