Restored Apple 27-Inch iMac Pro with Retina 5K Display (Late 2017) MQ2Y2LL/A, 3.2GHz Intel Xeon W, 32GB RAM macOS, 1TB SSD, - Space Gray (Refurbished) - Walmart.com
How To: Upgrade 2017 5k iMac RAM to 64GB & Saved $840 | 2018 - YouTube
OWC Confirms New Low-End 27-inch iMac Can Be Fitted With 64GB RAM - MacRumors
Timetec 16GB KIT(2x8GB) Compatible for Apple 2017 iMac (27-inch w/Retina 5K, 21.5-inch w/Retina 4K / Non-Retina 4K) DDR4 2400MHz PC4-19200 SODIMM MAC RAM Upgrade for iMac 18,1 / iMac 18,2 / iMac
Install memory in an iMac - Apple Support
Apple iMac with Retina 5K Display (2017) review | Digital Trends
Memory Upgrades for 2017 iMac 27-Inch
Adamanta 16GB (2x8GB) Memory Upgrade Compatible for 2017 Apple iMac 27"/21.5" Retina 5K/4K or Non-Retina Display DDR4 2400MHz PC4-19200 SODIMM 1Rx8 CL17 1.2v Single Rank RAM DRAM at Amazon.com
NEMIX RAM 64GB (4X16GB) SODIMM Memory Upgrade Kit DDR4 2400MHz PC4-19200 Compatible with Apple iMac
Apple iMac "Core i5" 3.4 27" (5K, Mid-2017) MNE92LL/A 27" 5120x2880 - 3.4 GHz Core i5 (i5-7500) Processor, 16GB RAM, 1TB Fusion, Ventura, Grade B - Green Dragon Technology
Used 2017 Apple iMac 27" Core i5 3.5GHz 24GB RAM 1TB Fusion MNEA2LL/A - Walmart.com
Apple iMac (27-inch, 2017) review: Apple doesn't mess with success - CNET