Adamanta 16GB (2x8GB) Apple Memory Upgrade DDR3L 1600MHz SODIMM Compatible for iMac (Mid 2011, Late 2012, Early/Late 2013, Late 2014, Mid 2015), MacBook Pro (Early/Late 2011, Mid 2012), Mac Mini at Amazon.com
Review: Apple's mid-2014 13-inch MacBook Pro with Retina display | AppleInsider
16GB Memory Upgrade for MacBook Pro, iMac, and Mac mini
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
16GB MacBook Pro RAM Upgrade (2011/2012/2013) - YouTube
15" MacBook Pro Retina A1398 - Logic Board Mid 2014