How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
SOLVED: Issues with bottom RAM-slot MBP 2012 - MacBook Pro 13" Unibody Mid 2012 - iFixit
Photo] 2011 MacBook pro 15 inch - Thunderbolt Port - Not working : r/CatalinaPatcher
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