NEMIX RAM 16GB Kit (2x8GB Upgrade) DDR3-1600 SODIMM PC3-12800 for Apple MacBook Pro Mid 2012 / iMac Late 2012 / iMac 2013, Late 2014, Mid 2015, Mac Mini Late 2012 at Amazon.com
A-Tech 8GB Kit (2x4GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Is there a way to upgrade the RAM in an early 2015 MacBook Pro without voiding the warranty? - Quora
Apple: MacBook Pro 15'' Retina Mid-2015: Upgrade RAM to 32Gb - YouTube
Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3L 1600MHz for Mac Book Pro (Early/Late 2011,Mid 2012), iMac(Mid 2011,Late 2012,Early/Late 2013,Late 2014,Mid 2015), Mac Mini(Mid 2011,Late 2012) MAC RAM at Amazon.com
Can You Upgrade the RAM in Your Mac?
Install 16GB RAM Upgrade on Macbook Pro 15" in under 5 minutes - YouTube
2017 21.5-inch 4K iMac memory upgrade kit includes 32GB of RAM, tools to take it apart | AppleInsider
Amazon.com: 2015 Apple MacBook Pro with intel I7 (15-inch, 16GB RAM, 256GB SSD)- Silver (Renewed) : Electronics
A-Tech 16GB Kit (2x8GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Apple MacBook Pro 15.4" MJLQ2LL/A Mid 2015 Silver - Intel Core i7-4870HQ 2.5GHz - 16GB RAM - 512GB SSD (Scratch and Dent) - Walmart.com
15" 15 Inch Retina MacBook Pro A1398 Mid 2015 Complete Disassembly (Almost) SSD Upgrade - YouTube