NEMIX RAM Compatible for 32GB (2X16GB)DDR4 2400MHz PC4-19200 SODIMM Memory Upgrade with Apple iMac 2017 27-inch w/Retina 5K, 21.5-inch w/Retina 4K / Non-Retina 4K) iMac 18,1 / iMac 18,2 / iMac 18,3 - Newegg.com
Upgrade your iMac with OWC, 2017 4K Retina Edition | TweakTown
iMac Intel 21.5" Retina 4K Display (2017) RAM Replacement - iFixit Repair Guide
A-Tech 16GB (2x8GB) RAM for Apple iMac 2017 (27 inch Retina 5K & 21.5 inch Retina 4K) | DDR4 2400MHz SODIMM PC4-19200 1.2V 260-Pin SO-DIMM Memory Upgrade Kit at Amazon.com
Apple iMac 21.5 review: The iMac for everybody - Pocket-lint
Install memory in an iMac - Apple Support
iMac Intel 21.5" Retina 4K Display (2017) RAM Replacement - iFixit Repair Guide
NEMIX RAM Compatible for 16GB (2X8GB) DDR4 2400MHz PC4-19200 SODIMM Memory Upgrade for Apple iMac 2017 27-inch w/Retina 5K, 21.5-inch w/Retina 4K / Non-Retina 4K) iMac 18,1 / iMac 18,2 / iMac 18,3 - Newegg.com
Review: Apple's 21.5" iMac with Retina 4K display gets solid 2017 architectural refresh | AppleInsider
Install memory in an iMac - Apple Support
Apple iMac 21.5-Inch With 4K Retina Display (2017) Review | PCMag
iMac Intel 21.5" Retina 4K Display (2017) RAM Replacement - iFixit Repair Guide
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
OWC Tears Down iMac Retina 4K, Confirms Memory Is Soldered
Teardown of new 21.5-inch iMac surprisingly reveals user-upgradable RAM, modular CPU - 9to5Mac
Install memory in an iMac - Apple Support
iMac 2017 vs 2019: What's the Difference? - Macworld UK
64GB RAM upgrade kit for 21.5-inch iMAC now offered by OWC - 9to5Mac
Install memory in an iMac - Apple Support
Apple's new 21.5" iMac with 4K Retina screen has user replaceable RAM and modular CPU
We've Got 2017 21.5″ iMac RAM Upgrade Kits | iFixit News
iMac 21.5-inch 4K (2017) Review | Trusted Reviews
The New 2017 iMac: Notes & Tidbits on RAM - The Mac Observer
iMac 21.5" 2017 4k Retina 3.6GHz i7 32GB/256GB SSD - Mac Outlet
