mac - What is the maximum RAM size for MacBook Pro Mid 2012? - Ask Different
Memory RAM Upgrade for Apple MacBook Pro 15-inch Mid 2012 4GB/8GB DDR3 SODIMM | 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
Memory RAM Upgrades for MacBook Pro (2012 - Late 2016)
MacBook Pro 15" Retina Display Mid 2012 Teardown - iFixit
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