How to take apart the 2013 Apple 27" iMac Model A1419 - YouTube
maxupgrades.com: Dual SSD Drives kit for iMac 27 inch 2012 Models with Blade SSD Module with Heatsink and Power and DATA Cables
Amazon.com: Sintech M.2 nVME SSD Adapter Card Upgrade Kits,Compatible for MacBook Air(2013-2017 Year) and MacBook PRO(Late 2013-2015 Year,iMac : Electronics
iMac 27" 2013 SSD upgrade - IT-Tech Online
2013 iMac teardowns reveal SSD slots, soldered-in CPU in the 21.5” model | Ars Technica
🛠️ 🖥️ 🍏 💽 iMac 27" 2012-2015 Hard Drive Replacement or SSD Upgrade - YouTube
Amazon.com: INDMEM NVMe PCIe SSD 256GB 3D TLC NAND Flash Hard Drive Replacement for Mid 2013-2017 MacBook Air, Late 2013 - Mid 2015 MacBook Pro Retina, Late 2013-2017 iMac, 2013 Mac Pro, 2014 Mac Mini : Electronics