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
MacBook Pro 13" Retina Display Late 2013 SSD Replacement - iFixit Repair Guide
maxupgrades.com: Dual SSD Drives kit for iMac 27 inch 2012 Models with Blade SSD Module with Heatsink and Power and DATA Cables
Apple iMac 21.5” SSD Upgrade (2013-2015) HDD To Solid State Drive (SATA) | Step By Step - YouTube
Amazon.com: Timetec 512GB MAC SSD NVMe PCIe Gen3x4 3D NAND TLC Read Up to 2,000MB/s Compatible with Apple MacBook Air (2013-2015, 2017), MacBook Pro ( 2013-2015), iMac (2013-2019), Mac Pro (2013), Mac Mini (2014) : Electronics
iMac Hard Drive Upgrade to SSD - Apple iPhone iPad Mac Repairs Medway Kent
SSD Upgrades for Apple iMac 27-Inch Late 2013 - 2019
SSD Upgrade Kits For 21.5 Inch iMac 2012 - 2013 | Imac, Ssd, Imac desk setup
2013 iMac teardowns reveal SSD slots, soldered-in CPU in the 21.5” model | Ars Technica
Amazon.com: PCIe NVMe Gen3x4 SSD 1TB 512GB 256GB 128GB 3D TLC NAND Flash Hard Drive SSD Replacement for Macbook Air 2013-2017, Macbook Pro Retina 2013-2015, iMac 2013-2017, Mac Pro 2013, Mac Mini 2014 (1TB) : Electronics
Sintech M.2 nVME SSD Adapter Card Upgrade Kits,Compatible for MacBook Air( 2013-2017 Year) and MacBook PRO(Late 2013-2015 Year,iMac
iMac Late 2013 21.5 SSD Upgrade - YouTube
Apple 128 GB Flash SSD for Mac Pro iMac MacBook Pro and Air TESTED - Original | eBay
How to Upgrade/Replace the PCIe SSD in a 21.5-inch iMac (Late 2013) on Vimeo