2013 iMac teardowns reveal SSD slots, soldered-in CPU in the 21.5” model | Ars Technica
21.5-inch - 9to5Mac
iMac Intel 21.5" EMC 2638 RAM Replacement - iFixit Repair Guide
iMac Intel 21.5" EMC 2389 RAM Replacement - iFixit Repair Guide
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
Install memory in an iMac - Apple Support
iMac Intel 21.5" Retina 4K Display (2017) RAM Replacement - iFixit Repair Guide
iMac Intel 21.5" EMC 2638 Logic Board Replacement - iFixit Repair Guide
Apple iMac 21.5 Inch Late 2013 UPGRADED 2.9GHz 16GB RAM | #1791616254
Install memory in an iMac - Apple Support
Memory RAM 1x 4GB Apple - iMac 21.5'' Late 2013 DDR3 1600MHz SO-DIMM | MD633G/A 1/2 | RAM MEMORY \ MEMORY FOR APPLE \ APPLE IMAC \ iMac Late 2013 \ iMac
How to Upgrade iMac RAM: 2012-2020: EveryMac.com
Upgrading an iMac — Buchanan Consulting
Apple Mac Memory Ram Upgrades Dublin
How to Upgrade iMac RAM: 2012-2020: EveryMac.com
Apple Logic Board for iMac 21.5-inch Late 2013 (A1418) Core i7 3.1GHZ (661-7504) - Apple Force
Teardown of New 4K 21.5-inch iMac Reveals Removable RAM and Modular CPU - MacRumors
Install memory in an iMac - Apple Support
Memory upgrade: Apple iMac 2012/2013/2014 (Howto)
What Does It Take To Upgrade a 2012 iMac 21.5"?
21.5-inch iMac (Late 2013) Review: Iris Pro Driving an Accurate Display
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
21.5 inch late 2013 iMac - RAM upgrade - Apple Community
iMac Intel 21.5" EMC 2544 RAM Replacement - iFixit Repair Guide
Install memory in an iMac - Apple Support
Apple Posts iMac (Late 2013) Memory Specifications
