How to Install/Upgrade the SSD Card Slot of a 27-inch iMac (Late 2012) on Vimeo
Worked like a charm on iMac Late 2012 27-inch (Bensova patcher) : r/BigSurPatcher
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
iMac late 2012-2019 NVMe OWC Aura Pro X2 Aufrüstung Konfigurator | Mac&PC