Amazon.com: 2015 Apple MacBook Pro with intel I7 (15-inch, 16GB RAM, 256GB SSD)- Silver (Renewed) : Electronics
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
macbook pro - Can I upgrade RAM on late 2013 retina Mac Book Pro? - Ask Different
A-Tech 8GB Kit (2x4GB) 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
MacBook Pro with Retina display review (13-inch, 2015) | Engadget
MacBook Pro (Retina, 13-inch, Early 2015) Upgrade to NVMe M.2 SSD - YouTube
8GB RAM Logic Board 820-4924-A for MacBook Pro Retina 13" A1502 2015 – ASA College: Florida