Apple iMac SSD Upgrade — Epoch Business IT Solution
Amazon.com: INDMEM PCIe NVMe Gen3x4 SSD 1TB 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
Amazon.com: OWC SSD Upgrade Bundle for 2011 iMacs, Mercury Electra 250GB 6G SSD, AdaptaDrive 2.5" to 3.5" Drive Converter Bracket, in-line Digital Thermal Sensor Cable, Installation Tools, (OWCKITIM11HE250) : Electronics
How to Install/Upgrade the PCIe SSD in a 27-inch iMac (Late 2013) iMac14,2 - YouTube
DIY SSD upgrade kit for late 2013-2019 iMac|iMac late 2013-2019 SSD with upgrade kit|Flexx Memory|Free UK Delivery
OWC Mac Pro (Late 2013) Storage upgrade for photographers - Camera Jabber
Reader's report: Installation of a 1 terabyte SSD in an Apple iMac 2013
SSD Upgrades for Apple iMac 27-Inch Late 2013 - 2019