How-To: Now's the right time to swap your old iMac's hard drive for a fast new SSD - 9to5Mac
Solid State Drives for iMac | Megamac
How to Install an SSD in an Older 2007-2009 iMac
Where is my iMac A1419 SSD? - Ask Different
How-To: Now's the right time to swap your old iMac's hard drive for a fast new SSD - 9to5Mac
Apple iMac SSD Upgrade | Total Microsystems
128GB FUSION DRIVE PCIe SSD Apple iMac 21.5" A1418,27" A1419 Late 2013,2014,2015 | eBay
2011 imac 27" 32GB - final stage of 1TB + 2TB SSD upgrade (replaced HDD & optic drive). Also cleaned out the fans and case. Running 'SSD Fan Control' & 'Macs Fan