A1286 - Charger for Macbook Pro 15 inch at 2.3ghz intel Core i7 - MD103LL/A - Mid 2012
Apple MacBook Pro 15" Retina Mid 2012 Logic Board 2.6Ghz i7 8Gb Ram A1398 / DG | eBay
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