How to install an SSD on a 15-inch Retina MacBook Pro
MacBook Pro 15" Unibody Mid 2012 Hard Drive Replacement - iFixit Repair Guide
Macbook Pro SSD Upgrade (2011/2012/2013) - YouTube
Can You Upgrade the Hard Drive or SSD In Your Mac?
2nd HDD SSD Hard Drive Caddy Adapter for MacBook Pro Mid 2012 replace UJ-8A8 DVD | eBay
Amazon.com: MCE Technologies 500GB Internal SSD Flash Upgrade for MacBook Pro Retina (Mid 2012 - Early 2013) - Includes USB 3.0 Enclosure for Original Drive & Install Kit! : Electronics
New 2.5" SSD won't fit - my MacBook pro says it's a mid 2012 15" model - Ask Different
Macbook Pro Mid 2012 SSD Upgrade - YouTube
Surprise! iFixit says you can't do much to fix or upgrade the 2015 MacBook | Ars Technica