16GB KIT (8GBX2) Memory Upgrade for iMac 5K/Retina 2014/2015 Intel Quad Core i5, i7 with Model ID: 15,1
The 16GB KIT contains (2) 8GB DDR3L-1600, PC3-12800, Non-ECC, Unbuffered, 1.35V, 204pin SO-DIMM
For iMac 27" with Retina 5K display 2014-2015 with Model ID: 15,1
For iMac 27" with processors:
27" i5 quad-core 3.3GHz 27" i5 quad-core 3.5GHz
27" i7 quad-core 4.0GHz
This iMac has 4 memory slots supporting up to 8GB per slot for a maximum of 32GB. Install memory in pairs for optimum performance.
Eagle Memory uses a non-stacked module for the DDR3L-1600 modules for the iMac. The cheaper stacked IC variety of SO-DIMM draws more power, which increases heat and can cause increased errors. Eagle Memory ONLY uses premium non-stacked chips.