MacBook Pro: How to remove or install memory - Apple Support
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
So I assembled a Specced Out Unibody MacBook Pro 15-inch (mid-2012, 2.6GHz Core i7, 16GB 1600MHz DDR3 RAM) and installed some gradient colored backlight keyboard on it… : r/mac
Apple MacBook Air "Core i5" 1.8 13" (Mid-2012) A1466 MD231LL/A – Coretek Computers
Apple MacBook Pro 13" A1278 mid 2012 (EMC 2554) Notebook - 1529939 | furbify
2012 Apple MacBook Pro Core i7 2.5GHz i5 MD101LL/A
MacBook Pro (13-inch, Mid 2012) Hard Drive (and possibly RAM) replacement : r/mac
Apple MacBook Pro 13" (2012) Core i5, 8GB RAM 500GB HDD - Silver (Refurbished) | Macworld
MacBook Pro (13-inch, Mid 2012) - Technical Specifications
Amazon.com: 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 : Electronics
Mid-2012 Macbook Pro 16GB RAM Upgrade How To - YouTube
2012 Macbook Pro 13" A1278 RAM Upgrade - YouTube
MacBook Pro 13" Unibody A1278 (Mid 2012) RAM Upgrade Kit
parts-quick 8GB Memory for Apple MacBook Pro 13 inch (Mid 2012) PC3-12800S 1600MHz DDR3 SODIMM Compatible RAM Brand at Amazon.com