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
16 GB RAM Upgrade on MacBook Pro 15" (mid 2012) NON Retina - YouTube
Apple MacBook Pro with Retina Display (15-inch, 2014) review: Still the best higher-res laptop, but the competition is catching up - CNET
Replace motherboard with new? - MacBook Pro 15" - iFixit
Apple Macbook Pro Laptop 15" 2.3Ghz - 3.3Ghz Core i7 - Up to 16GB & 2TB SSHD
New model, two-year-old processor: The 2015 15-inch Retina MacBook Pro reviewed | Ars Technica
8GB Memory (PC3L-12800, DDR3L 1600MHz) for Apple MacBook Pro 15 inch A1286 Mid 2012. Apple MacBook Pro 13 inch A1278 - Mid 2012. iMac 21.5 inch A1418 Late 2012, A1418 Early 2013,
Memory RAM Upgrades for MacBook Pro (2012 - Late 2016)