How to install an SSD on a 15-inch Retina MacBook Pro
Photo tutorial: Upgrading a MacBook Pro with an SSD
15-Inch MacBook Pro With Touch Bar Has Non-Removable SSD - MacRumors
MacBook Pro 13" Retina Display Late 2012 SSD Replacement - iFixit Repair Guide
Upgrading the new MacBook Pro is still a major pain
How To Add Second A SSD to Replace Optical Drive MacBook Pro 2012 - YouTube
Amazon.com: MCE Technologies 1TB Internal SSD Flash Upgrade for MacBook Pro Retina (Mid 2012 - Early 2013) - Includes USB 3.0 Enclosure for Original Drive & Install Kit! : Electronics