Apple MacBook Pro 15.4" (512GB SSD, Intel Core i7-3520M, 2.6GHz, 8GB RAM) Notebook - Silver (MC976LL/A) for sale online | eBay
Apple MacBook Pro (15-inch, Mid 2012) 2.3GHz Quad-Core i7, 8GB RAM, 512GB SSD | eBay
upgrade - 32gb of RAM on a 2011 or 2012 15/17-inch MacBook Pro using Crucial's 16gb single DIMMs - Ask Different
Apple MacBook Pro (Retina, 15-inch, Mid 2012) Silver, 16GB RAM, 512GB SSD MacOS Catalina (10.15) Used (Grade C) - One Bite Technology - St. Albert
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
Refurbished 2015 Apple MacBook Pro Quad Core i7 2.8 15" Dual Graphics 16GB RAM 2TB SSD MJLU2LL/A A1398
Apple Macbook Pro Laptop 15" 2.3Ghz - 3.3Ghz Core i7 - Up to 16GB & 2TB SSHD
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
MacBook Pro (Retina, 15-inch, Mid 2012) — One:One
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com