64GB DDR4-3200 PC4-25600 2Rx4 RDIMM ECC Registered Memory by NEMIX RAM at Amazon.com
32GB PC4-19200-R (2400Mhz) ECC Registered Server Memory RAM – TechMikeNY
8GB DDR4 PC4-19200 CL=17 Dual Ranked x4 based Registered ECC DDR4-2400 1.2V 2048Meg x 72 RAM
32GB Memory for ASRock Server 2U4G-EPYC, 2U4G-EPYC-2T DDR4 3200MHz ECC Registered RAM (PARTS-QUICK Brand) at Amazon.com
RAM [rigacci.org]
CMS 6GB (3x2GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z600 DDR3 ECC UNBUFF for Server Only - B75 at Amazon.com