How to upgrade iMac (2020) RAM and save up to $2000 - 9to5Mac
32GB (2X16GB) RAM Memory 4 Apple iMac 27-inch late 2015 BY CMS C50 849005076241 | eBay
Refurbished 27-inch iMac 3.1GHz 6-core Intel Core i5 with Retina 5K display - Apple
Install memory in an iMac - Apple Support
Adamanta 16GB (1x16GB) Memory Upgrade for 2020 Apple iMac 27" w/Retina 5K Display, 2019 Apple iMac 27" w/Retina 5K Display, 2018 Apple Mac Mini DDR4 2666Mhz PC4-21300 SODIMM 2Rx8 CL19 1.2v DRAM
Refurbished 27-inch iMac 3.1GHz 6-core Intel Core i5 with Retina 5K display - Apple
Apple 27" iMac® with Retina 5K display Intel Core i5 (3.1GHz) 8GB Memory 256GB SSD Silver MXWT2LL/A - Best Buy