15" MacBook Pro Retina A1398 LOGIC BOARD Late 2013
MacBook Pro 13" Retina Display Late 2013 SSD Replacement - iFixit Repair Guide
Early 2011 MacBook Pro RAM Upgrade – Hack-the-Planet
Upgrading Ram in a Macbook Pro 13" | How to Upgrade Ram on 13" Macbook Pro - YouTube
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
Is there a way to upgrade the RAM in an early 2015 MacBook Pro without voiding the warranty? - Quora
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