How to Upgrade RAM on MacBook Pro, iMac & More | AVG
The New 2017 iMac: Notes & Tidbits on RAM - The Mac Observer
How to UPGRADE RAM in the (Mid 2017) 5K iMac & save $$$! - YouTube
Upgrade your iMac 27'' 2017 RAM with MrMemory review - Wim Arys
How to UPGRADE RAM in the (Mid 2017) 5K iMac & save $$$! - YouTube
64GB RAM upgrade kit for 21.5-inch iMAC now offered by OWC - 9to5Mac
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