MacBook Pro 15" (2014) - QWERTY - English Retina - Core i7 - 2.8 GHz - SSD 512 GB - RAM 16GB | Back Market
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
Logic Board for 15" MacBook Pro Retina Mid 2014 -- i7-4770HQ IG 2.2GHz - Part Haven
A-Tech 8GB 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
Is it possible to upgrade MacBook Pro (Retina, 15-inch, Mid 2014) to 32GB RAM? - Quora
Apple MacBook Pro (Retina, 13-inch, Mid 2014) Silver, 8GB RAM, 128GB SSD MacOS Big Sur (11) Used (Grade A) - One Bite Technology - St. Albert
Apple MacBook Pro (Retina, 13-inch, Mid 2014) Silver, 8GB RAM, 128GB SSD MacOS Big Sur (11) Used (Grade B) - One Bite Technology - St. Albert