Refurbished Apple iMac 14,1/i5-4570R/16GB RAM/1TB HDD/21.5-inch/Iris Pro 5200/B (Late - 2013) | SafepcDirect
Refurbished Apple iMac 14,2/i5-4670/16GB RAM/1TB HDD/775M/27"/A (Late 2013) | Mac4sale
iMac RAM for Model 13.2 to 15.1| DDR3-1600MHz | 8GBx2 | MacMemory.com
Install memory in an iMac - Apple Support
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
How to Upgrade/Install Memory in a 21.5-inch iMac (Late 2012– Mid 2014) iMac14,1 iMac14,3 - YouTube
A-Tech 8GB Kit (2x4GB) 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
How to upgrade the 27-inch 5K iMac (2019) with a massive 128GB of RAM [Video] - 9to5Mac
Upgrade your iMac's RAM in less than 5 minutes - YouTube
iMac (21.5-inch, Late 2013) - Technical Specifications