32GB (2 X 16GB) Kit Memory for Apple iMac Late 2015 27-inch 1867MHz DDR3 SO-DIMM at Amazon.com
A-Tech 32GB Kit (4x8GB) RAM for Apple iMac (Late 2012, Late 2013, Late 2014, Mid 2015) | DDR3 1600MHz SODIMM PC3-12800 204-Pin SO-DIMM Max Memory Upgrade at Amazon.com
Apple iMac MK462LL/A 27-Inch Retina 5K Desktop (3.2 GHz Intel Core i5, 8GB DDR3, 1TB, Mac OS X) (Renewed) | Pricepulse
OWC Confirms 64GB of RAM in Apple 27" iMac 2017
16GB DDR3 1867MHz PC3-14900 SO-DIMM Kit for Apple iMac Late 2015 (2X 8GB) | Pricepulse
16GB DDR3 1867MHz PC3-14900 SO-DIMM Kit for Apple iMac Late 2015 (2X 8GB) | Pricepulse