A-Tech for Apple 8GB DDR3 1600MHz PC3-12800 204-pin SODIMM MacBook Pro (Mid 2012, 13” / 15”), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015, 21.5” / 27”, Retina 5K) Memory RAM Upgrade at Amazon.com
Apple MacBook Pro with Retina Display (15-inch, 2014) review: Still the best higher-res laptop, but the competition is catching up - CNET
MacBook Pro 15" Retina Display Mid 2012 Teardown - iFixit
Refurbished 2015 Apple MacBook Pro Core i7 2.8 15" 16GB RAM 2TB SSD
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
Updated my Mid-2015 MacBook Pro (Core i7, 16GB RAM, 256GB SSD) to macOS Sonoma. Also attached Xcode Benchmarks & Speedometer results (browser test) : r/OpenCoreLegacyPatcher
mac - Can I upgrade the memory on late 2013 Retina MacBook Pro? - Ask Different
15in Retina MacBook Pro review (15in, mid 2014) | Macworld