Easiest Step by Step How-To Guide to Upgrading your Macbook Pro 13" Retina Mid 2014 SSD - YouTube
How to Upgrade the SSD on a MacBook Pro Retina Early/Mid/Late 2013/2014/2015 - Replacement Tutorial - YouTube
Amazon.com: OWC 1.0TB Aura Pro X2 SSD Compatible with MacBook Air (Mid 2013-2017), and MacBook Pro (Retina, Late 2013 - Mid 2015), and Mac Mini (Late 2014) : Electronics
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
Amazon.com: Odyson - 128GB SSD Replacement for Apple MacBook Pro 13" Retina A1502, 15" A1398 (Late 2013-Mid 2014) : Electronics