MacBook Pro (Retina, 15-inch, Mid 2012) - Technical Specifications
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
MacBook Pro 13" Retina Display Early 2015 SSD Replacement - iFixit Repair Guide
Apple MacBook Pro with Retina Display (15-inch, 2014) review: Still the best higher-res laptop, but the competition is catching up - CNET
New model, two-year-old processor: The 2015 15-inch Retina MacBook Pro reviewed | Ars Technica
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
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
Can I upgrade the internal memory of my MacBook Pro (Retina, 13-inch, Early 2015) Model Identifier 12,1? - Quora
HOW to UPGRADE your MacBook Pro! (Mid 2015) - YouTube
Is there a way to upgrade the RAM in an early 2015 MacBook Pro without voiding the warranty? - Quora
Refurbished 2015 Apple MacBook Pro Quad Core i7 2.8 15" Dual Graphics 16GB RAM 2TB SSD MJLU2LL/A A1398
HOW to UPGRADE your MacBook Pro! (Mid 2015) - YouTube