Base model iMac Pro teardown sheds more light on its upgrade potential - 9to5Mac
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
Memory Upgrades for 2017 iMac 27-Inch
Apple iMac 27 inch 16GB RAM Upgrade | 2020 Tutorial | TechCentury - YouTube
Teardown of New 4K 21.5-inch iMac Reveals Removable RAM and Modular CPU - MacRumors
Memory Upgrades for 2017 iMac 27-Inch
Amazon.com: OWC 32GB (2 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S32P) : Everything Else
Install memory in an iMac - Apple Support
Install memory in an iMac - Apple Support
Install memory in an iMac - Apple Support
How To: Upgrade 2017 5k iMac RAM to 64GB & Saved $840 | 2018 - YouTube