OWC 1TB Pro 6G SSD and HDD DIY Bundle Kit (for 27" iMac 2012 and later) | Megamac
Amazon.com: OWC SSD Upgrade Bundle for 2012-2019 21.5" iMacs, Mercury Electra 1.0TB 6G SSD, Express 2.5" USB 3.0 HDD Enclosure, Installation Tools and iMac Screen Adhesive Tape Set : Electronics
iMac late 2012 SSD Upgrade - Apple Community
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
🍏🖥️🛠️ 21.5" iMac Hard Drive Replacement or SSD Upgrade 2012-2017 (Including Retina) A1418 - YouTube