Buy Used & Refurbished Apple iMac 27" 2013 Core i5-4570 Quad-Core ME088LLA-PB-RCA - iMac
Install memory in an iMac - Apple Support
Apple iMac 21.5-inch and 27-inch (Late 2013) reviews | Macworld
How to upgrade the 27-inch 5K iMac (2019) with a massive 128GB of RAM [Video] - 9to5Mac
SSD Upgrades for Apple iMac 27-Inch Late 2013 - 2019
iMac 27-Inch "Core i7" 3.5 Late 2013 Max RAM is higher than 32gb | MacRumors Forums
How to Upgrade Memory in a 27-inch iMac (Late 2012-2013) iMac13,2 and iMac14,2 - YouTube
Install memory in an iMac - Apple Support
Apple Posts iMac (Late 2013) Memory Specifications
A-Tech 32GB Kit (4x8GB) RAM for Apple iMac (Late 2012, Late 2013, Late 2014, Mid 2015) | DDR3 1600MHz SODIMM PC3-12800 204-Pin SO-DIMM Max Memory Upgrade at Amazon.com
Apple iMac 27 inch Desktop - MF125LL/A (September, 2013) for sale online | eBay