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
Can you upgrade the RAM in the 27-inch iMac? | iMore
2018 iMac - Top 7 upgrades we want for this year's refresh! - YouTube
32GB NEMIX RAM Memory for 2019 Apple iMac 27 inch Retina 5K (iMac19,1 A2115), 2018 Apple Mac Mini (Macmini8,1 A1993) - Newegg.com
Apple iMac 27" ME088LL/A Late 2013 - 8GB RAM - 1TB HDD - 3.2GHz Intel Core i5-4570 (Scratch and Dent) - Walmart.com
32GB Memory Upgrade for 2019-2020 iMac and 2018 Mac mini
How to: 27-inch 5K iMac (2019) 128GB RAM Upgrade - Save $$$! - YouTube
128GB Memory Upgrade for 2019-2020 Apple iMac (27-Inch)
Factory Original 64GB (2x32GB) Memory Upgrade for 2020 & 2019 Apple iMac 27" w/ Retina 5K Display & 2018 Apple Mac Mini DDR4 2666Mhz PC4-21300 SODIMM 2Rx8 CL19 1.2v RAM Adamanta at Amazon.com
NEMIX RAM 32GB Upgrade Kit (2x16GB) DDR4 2666MHz PC4-21300 SODIMM Memory Compatible for Apple iMac Mid 2020 iMac (20,1 / 20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K, Late 2018 Mac Mini (8,1) at Amazon.com