How to upgrade the RAM on the 27-Inch iMac (2020) | AppleInsider
Memory Upgrades for 2019-2020 iMac 27-Inch - Up to 128GB
32GB NEMIX RAM Memory for 2019 Apple iMac 27 inch Retina 5K (iMac19,1 A2115), 2018 Apple Mac Mini (Macmini8,1 A1993) System Specific Memory - Newegg.com
Amazon.com: Apple iMac MRQY2LL/A 27 Inch Early 2019 i5 3.0GHz 8GB Ram - 1TB HHD (Renewed) : Electronics
Apple iMac 27-inch (2019) review: Apple iMac 2019 is a millennial trapped in the body of a baby boomer - CNET
Memory Upgrades for 2019-2020 iMac 27-Inch - Up to 128GB