Dell 32GB DDR4 SDRAM Memory Module - for Server - 32 GB (1 x 32 GB) - DDR4-3200/PC4-25600 DDR4 SDRAM - 1.20 V - ECC - Registered - 288-pin - DIMM at Amazon.com
Axiom 128GB DDR4 SDRAM Memory Module - For Blade Server - 128 GB - DDR4-2933/PC4-23466 DDR4 SDRAM - CL21 - 1.20 V - ECC - 288-pin - LRDIMM - TAA Compliance at Amazon.com
Amazon.com: HP 16GB DDR4 SDRAM Memory Module : Electronics
Lenovo 32GB DDR4 SDRAM Memory Module at Amazon.com
G.Skill Trident Z RGB Series 32GB (2 x 16GB) 288-Pin SDRAM (PC4-25600) DDR4 3200 CL16-18-18-38 1.35V Dual Channel Desktop Memory Model F4-3200C16D-32GTZR at Amazon.com