Upgrading 2013/2014 Macbook Pro SSD to M.2 NVMe | MacRumors Forums
MacBook Pro (Retina, 15-inch, Mid 2014) - Technical Specifications
Samsung ssd m.2 to Macbook pro mid 2014 | MacRumors Forums
SSD Upgrades for 2013, 2014, and 2015 MacBook Pro
Amazon.com: Original 128GB PCI-e SSD Replacement for MacBook Pro Late 2013 - Mid 2014, MacBook Air Mid 2013 - Early 2014, iMac Late 2013 - Mid 2015, Mac Mini Late 2014 (Bulk, No Retail Packaging) : Electronics
Upgrade MacBook Pro to NVMe SSD | MacBook Pro Retina SSD Upgrade | 256GB to 1TB NVMe M.2 | Mid 2014 - YouTube
Easiest Step by Step How-To Guide to Upgrading your Macbook Pro 13" Retina Mid 2014 SSD - YouTube