G.Skill TridentZ RGB Series - DDR4-64 GB: 4 x 16 GB - DIMM 288-PIN - ungepuffert at Amazon.com
128GB (4 x 32GB) DDR4 3200MHz PC4-25600 288-PIN DIMM MEMORY KIT FOR DESKTOPS/PCs | eBay
OWC 64GB (4 x 16GB) PC19200 DDR4 2400MHz CL17 260pin SO-DIMMs Memory Compatible with 27" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S64S) at Amazon.com
Crucial Technology 64GB (4X 16GB) 288-Pin RDIMM DDR4 (PC4-21300) Memory Module Kit, CL=19, Registered, 2666 MT/S Speed, ECC, 1.2V, 2048Meg x 72, Dual Ranked, x4 Based at Amazon.com
HyperX Fury 64GB (4 x 16GB) DDR4 2133MHz DRAM (Desktop Memory) CL14 1.2V Black DIMM (288-pin) HX421C14FBK4/64 (Intel XMP, AMD Ryzen) - Newegg.com
64GB (4 x 16GB) DDR4 2666MHz PC4-21300 ECC REGISTERED IMAC PRO MEMORY RAM KIT | eBay
Asus PRO B550M CCSM Desktop Motherboard AMD B550 Chipset Socket AM4 Micro ATX 128 GB DDR4 SDRAM Maximum RAM DIMM UDIMM 4 x Memory Slots Gigabit Ethernet HDMI DisplayPort 4 x SATA
A-Tech 16GB Kit (4x4GB) RAM for QNAP ES2486dc NAS | DDR4 2133MHz PC4-17000 ECC RDIMM 1Rx8 1.2V 288-Pin ECC Registered DIMM Memory Upgrade at Amazon.com
V-Color 32GB (2 x 16GB) ECC SO-DIMM DDR4 2666MHz (PC4-21300) for NAS Micro Server/Workstation/Compatible with Synology 21 Series 2Rx8 CL19 1.2V (TES416G26D819K-VKC) at Amazon.com
CT4K16G4VFS4266 - Crucial 64GB Kit (4 X 16GB) DDR4-2666MHz PC4-21300 E — Tech Network Supply LLC