A-Tech 8GB RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Install memory in an iMac - Apple Support
iMac Intel 21.5" EMC 2805 - iFixit
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
Install memory in an iMac - Apple Support
Apple iMac Memory - Intel Core i7 3.1GHz Quad-Core 21.5" Late 2013 ME087LL/A CTO - DMS
EXPERT MEMORY 8GB 1600 2Rx8 Apple iMac iMac 14,1 RAM Upgrade PC Memory 8 GB DDR3 | MediaMarkt
Install memory in an iMac - Apple Support
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer 16GB(8GB-modules) 2 x 8GB - Walmart.com
Apple iMac 14,1 - 21.5" 2013 - Core i5-4570R @ 2.70GHz 16GB RAM 1TB HDD - Good | eBay