Upgrading a 27-inch iMac 5K to 14 terabytes - Replacing the Fusion Drive with both a SSD and an harddisk
SSD Upgrades for Apple iMac 27-Inch Late 2013 - Current
Mini-review: How much faster have high-end iMacs gotten in the last 5 years? | Ars Technica
Upgrade your iMac with OWC, 2017 4K Retina Edition | TweakTown
iMac (Retina 4K, 21.5-inch, 2017) - Technical Specifications
iMac Intel 27" (Late 2012-2019) SSD Upgrade Bundle - iFixit Store
iMac Mid-2017 Benchmarks Performance Comparison: EveryMac.com
iMac Intel 21.5" Retina 4K Display (2017) Blade SSD Replacement - iFixit Repair Guide
iMac Intel 27" (Mid 2017-2019) SSD Blade Upgrade Bundle - iFixit Store
Memory Upgrades for iMac w/ Retina 5K Display Late 2015
iMac (Retina 5K, 27-inch, 2017) CPU and NVME SSD Upgrade Pitfalls and Tips | MacRumors Forums
2015 vs 2017 5K iMac Comparison - Should you upgrade? - YouTube
Performance, features and verdict - Apple iMac (27-inch, 2019) | TechRadar
Custom Fusion Drive isn't reaching NVME (Blade SSD) speeds... | MacRumors Forums
Apple 27" iMac with Retina 5K Display (Mid 2017) Z0TR-MNED43-BH
iMac 27-Inch "Core i5" 3.4 (5K, Mid-2017) Specs (Retina 5K, Mid-2017, MNE92LL/A, iMac18,3, A1419, 3070): EveryMac.com
iMac 27" 2017 Hard Drive Replacement - iFixit Repair Guide
Flash Storage - 2017 iMac 5K vs others
Refurbished 27-inch iMac Pro 3.2GHz 8-core Intel Xeon W with Retina 5K display - Apple
iMac 1 TB Fusion Drives Have Smaller SSDs - TidBITS
iMac (Retina 5K, 27-inch, 2017) CPU and NVME SSD Upgrade Pitfalls and Tips | Page 5 | MacRumors Forums
