Is there a way to upgrade the RAM in an early 2015 MacBook Pro without voiding the warranty? - Quora
Apple MacBook Pro with Retina Display (15-inch, 2014) review: Still the best higher-res laptop, but the competition is catching up - CNET
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
Can we upgrade the RAM of a 13-inch MacBook Pro non-Retina to 16GB? - Quora
MacBook Pro (Retina, 13-inch, Early 2015) Upgrade to NVMe M.2 SSD - YouTube
timetec 32gb kit(4x8gb) compatible for apple ddr3l 1600mhz pc3l-12800 cl11 for imac (mid 2011, late 2012, late 2013, late 2014 retina 5k, mid 2015 retina 5k) sodimm memory module mac ram upgrade - Walmart.com
MacBook Pro 15" Retina Display Mid 2014 Repair - iFixit
Tested Laptop Motherboard i5 i7 For Macbook Pro Retina 13" A1502 Logic Board Ram 4GB 8GB 16GB 2013 2014 2015 Years
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com