Apple iMac 27" 2014 Intel Core i5 3.5GHz 1TB SSD 8GB RAM - A Grade Refurbished | Groupon
Install memory in an iMac - Apple Support
Timetec 32GB KIT(4x8GB) Compatible for Apple DDR3L 1600MHz PC3L-12800 CL11 for iMac (Mid 2011, Late 2012, Late 2013, Late 2014 Retina 5K, Mid 2015 Retina 5K) SODIMM Memory Module MAC RAM Upgrade at Amazon.com
iMac with Retina 5K Display 2014/2015 Memory Upgrades