Apple 32GB SSD Solid State Drive 656-0029D iMac A1419 2012 -2015 Mac Mini 2014 | eBay
SSD Upgrade Kits For 21.5 Inch iMac 2012 - 2013
You won't be adding an aftermarket SSD to your new iMac | Ars Technica
Fine Tuned Tech - Why did Apple ship their premium 21.5 inch iMac with a slow laptop hard drive from 2012-2019? If you have one of these models, it can be upgraded
How to Install an SSD Card into a 21.5-inch iMac (Late 2012–Early 2013) on Vimeo