WiFi, IO & The Chassis - 21.5-inch iMac (Late 2013) Review: Iris Pro Driving an Accurate Display
Apple iMac (27-inch, September 2013) review: New processors and faster Wi-Fi for Apple's slim desktop - CNET
Amazon.com: 2013 Apple iMac with 3.2GHz Intel Core i5 (27-inch, 8GB 1TB Mac OS X) (Renewed) : Electronics
21.5-inch iMac (Late 2013) Review: Iris Pro Driving an Accurate Display
Apple iMac (27-inch, September 2013) review: New processors and faster Wi-Fi for Apple's slim desktop - CNET
Amazon.com: USB C 3.2 SSD Enclosure for 12+16 Pin MacBook SSDs for MacBook Pro 2013-2015, iMac 2013-2015, MacBook Air 2013-2017, Portable Aluminum SSD Adapter with Adjustable Indicator for MacBook SSD : Electronics
Identify your iMac model - Apple Support
Apple iMac A1419 Late 2013 Logic Board 820-3478-A (2x Faulty USB Ports) | eBay
Apple iMac 21.5" Core i5-4570R 2.70 GHz, 8GB RAM, 1TB HDD, 10.15.6 Lat – PC Retro Shop
iMac (27-inch, Late 2013) - Technical Specifications
Differences Between Late 2013 iMacs (Tapered Aluminum): EveryMac.com
Apple iMac 21.5-inch 2.7GHz Quad-core i5 (Late 2013)
External SSD on Late-2013 27" iMac | MacRumors Forums
Amazon.com: USB C 3.2 Enclosure for 12+16 PIN MacBook SSDs, PCle SSDs Enclosure Supports for 2013-2017 MacBook Air, 2013-2015 MacBook Pro Retina, 2013-2014 iMac, 2013 Mac Pro, 2014 Mac Mini : Electronics