Apple iMac Late 2012 250SSD 8GB RAM 21.5" - Zen Computer Shop
New 21-Inch iMac Won't Let Users Upgrade RAM Themselves, But 27-Inch iMac Will | Cult of Mac
How to Upgrade RAM in a 27" iMac (2012) - YouTube
iMac RAM for Model 13.2 to 15.1| DDR3-1600MHz | 8GBx4 | MacMemory.com
8GB Memory (PC3L-12800, DDR3L 1600MHz) for Apple MacBook Pro 15 inch A1286 Mid 2012. Apple MacBook Pro 13 inch A1278 - Mid 2012. iMac 21.5 inch A1418 Late 2012, A1418 Early 2013,
A-Tech 32GB Kit (4x8GB) RAM for Apple iMac (Late 2012, Late 2013, Late 2014, Mid 2015) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Apple iMac 13,1 A1418 2012 Intel Core i5 3330S 2.70GHZ 8GB RAM NO Screen/HDD/OS | eBay