240GB OWC 6G SSD and HDD Kit for 27-inch iMac all 2012 - Mid 2019
iMac 27 2012-2015 Hard Drive Replacement with SSD
How to Install/Upgrade the SSD Card Slot of a 27-inch iMac (Late 2012) on Vimeo
SSD Upgrade Kits for 27-Inch iMac (2012 - Early 2013)
maxupgrades.com: Single SSD Drives kit for iMac 27 inch 2012 Models with SATA Blade SSD Module / Heatsink/ Power Cable and DATA Cables for [SSD + HDD] with iMac Adhesive LCD Tape