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
OWC Memory Upgrade Kit 8GB and 16GB PC3-12800 DDR3L 1600MHz SO-DIMMs for 21.5-inch iMac Late 2012 - 2013