Replaced 2017 iMac Fusion Drive with OWC SSD kit…. Didn't go as planned…. : r/osx
Amazon.com: OWC SSD Upgrade Kit for 2010 27-inch iMacs, Mercury Electra 500GB 6G SSD, 18" SATA III 6Gbps Data Cable, SSD Power Cable, Installation Tools and iMac Screen Adhesive Tape Set :
Apple iMac Pro 5K 27-inch (Late 2017) 3.2GHz 32GB RAM 1TB SSD- Buy Refurbished iMac 2017 at Techable
iMac (Retina 5K, 27-inch, 2017) CPU and NVME SSD Upgrade Pitfalls and Tips | Page 5 | MacRumors Forums
How to Install a SSD into an iMac (Retina 5K, 27-inch, 2017) - YouTube