Install memory in an iMac - Apple Support
Apple iMac 27" Desktop - 3.4GHz Quad-Core i5 - 16GB RAM - 1TB HDD - NVIDIA Geforce GTX 775M (2GB) - (2013) - Silver - Best Deal in Town
RAM Door Cover for iMac 27" A1419 (Late 2013, Mid 2017)
Install memory in an iMac - Apple Support
Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
Apple iMac (27-inch, Late 2013) iMac14,2 | Memory RAM & SSD Upgrades | Crucial.com
CMS 32GB (4X8GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core I5 3.2 27-Inch (Late 2013) Me088Ll/A - A6 at Amazon.com
Memory upgrade: Apple iMac 2012/2013/2014 (Howto)
A-Tech 16GB (2x8GB) RAM for Apple iMac Late 2015 27 inch Retina 5K | DDR3L 1866MHz / 1867MHz PC3L-14900 1.35V 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
Differences Between Late 2013 iMacs (Tapered Aluminum): EveryMac.com
Late 2013 iMac review: Faster than before, but the gains over previous models are modest | Macworld
Apple iMac 27-Inch (2013) Review - SlashGear
iMac Intel 27" EMC 2639 RAM Replacement - iFixit Repair Guide
Apple iMac 21.5-inch and 27-inch (Late 2013) reviews | Macworld
Install memory in an iMac - Apple Support
Apple iMac 27-Inch "Core i5" 3.2GHz (Late 2013) A1419 ME088LL/A 16GB – Coretek Computers
8GB -2x4GB Memory Ram Upgrade for 27" Apple iMac-14.2 Core i7 3.5GHz Late 2013 | eBay
iMac 27-Inch "Core i7" 3.5 Late 2013 Max RAM is higher than 32gb | MacRumors Forums
iMac Intel 27" EMC 2639 RAM Replacement - iFixit Repair Guide
Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
Apple iMac 27-Inch "Core i5" 3.2GHz (Late 2013) A1419 ME088LL/A 16GB – Coretek Computers
Apple iMac 27" All-In-One Computer, Intel Core i5, 8GB RAM, 1TB HD, Mac OS, Silver, ME088LL/A (Used) - Walmart.com
8GB 2 X4GB Memory for iMac 27" inch 3.2GHz Quad Core Intel Core i5 Late 2013 ME088LL/A 1600MHz DDR3 (PC3-12800) SO-DIMMs RAM (PARTS-QUICK Brand) at Amazon.com
Install memory in an iMac - Apple Support
