V-Color 64GB (2 x 32GB) ECC SO-DIMM DDR4 2666MHz (PC4-21300) for microservers, workstations, Networking Platforms and Embedded Systems 2Rx8 CL19 1.2V (TES432G26D819K-VC) at Amazon.com
2GB 2 X 1GB PC3200 400MHz 184 pin DDR SDRAM Non-ECC DIMM Desktop Memory for Dell Dimension 3000 (PARTS-QUICK Brand) at Amazon.com
OWC 16GB (2 x 8GB) PC21300 DDR4 2666MHz SO-DIMMs Memory Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S16P) at Amazon .com
4GB Kit (2 X 2GB) PC2100 Registered 266MHz 184 pin DDR SDRAM ECC DIMM Memory RAM for Dell PowerEdge 650 1750 2600 2650 Server (PARTS-QUICK Brand) at Amazon.com
parts-quick 8GB (2 X 4GB) Kit Memory Module for Apple iMac 27" 2017 5K Retina Display DDR4 2400MHz SO-DIMM RAM at Amazon.com
MemoryMasters 1GB (2 X 512MB) SDRAM Memory RAM PC133 168-pin DIMM for Desktop PC Computer at Amazon.com
Amazon.com: OWC 16GB (2 X 8GB) DDR3 1333MHz 240-pin DIMM ECC Memory Compatible with Mac Pro 2009-2012 'Nehalem' & 'Westmere' Models (OWC1333D3W8M16K) : Everything Else
8GB (2 X 4GB) DDR3 1600MHz PC3-12800 240-pin Memory RAM DIMM Kit for Desktop PC by NEMIX RAM at Amazon.com
Global Memory 2GB (2 x 1GB) DDR2 400/533/667MHz 240-PIN ECC Registered DIMM (RDIMM) Memory Ram Kit for Servers/Workstations/Motherboards (4 Rank Kit) at Amazon.com
AMC OPTICS MEM-3900-1GU4GB-AMC / 4 GB (2 x 2 GB) - DRAM - ECC - 240-pin - DIMM / KIT UPG FOR 3900 SERIES at Amazon.com