Tech 101: Order the Right Amount of Memory for Your New Mac
27" iMac RAM Access Door
Original 922 8186 memory cover bezel For Apple iMac A1224 A1225 (MB398 MB420) mac all in one machine RAM Memory Door Cover|Computer Cables & Connectors| - AliExpress
How to upgrade the RAM on the 27-Inch iMac (2020) | AppleInsider
Memory in New $1099 iMac is Soldered and Not Upgradable - MacRumors