How to Install/Upgrade the PCIe SSD in a 27-inch iMac (2019) on Vimeo
SSD Upgrades for Apple iMac 27-Inch Late 2013 - 2019
Apple A Grade Desktop Computer 27-inch iMac A2115 2019 MRR02LL/A 3.6 GHz Core i9 (I9-9900K) 16GB RAM 2 TB SSD Storage Mac OS Include Keyboard and Mouse - Walmart.com
Review: 27-Inch iMac 5K with i5 processor - 2012 on the outside, 2019 on the inside | AppleInsider
How to upgrade the 27-inch 5K iMac (2019) with a massive 128GB of RAM [Video] - 9to5Mac
Hard Drive Upgrade Kit for 27-Inch iMac 2012 - 2019