How to Upgrade the SSD in a 15-inch MacBook Pro w/ Retina display (Mid 2012–Early 2013) on Vimeo
The next-gen MacBook Pro with Retina Display: SSD Analysis
Does the mid-2012 13 MacBook Pro have an M.2 slot that I can use for an Intel Optane memory upgrade? - Quora
Amazon.com: MCE Technologies 500GB Internal SSD Flash Upgrade for 13" and 15" MacBook Pro with Retina Display (Mid 2012 - Early 2013) - Includes Installation Kit! : Electronics
MacBook Pro 13" Retina Display Late 2012 SSD Replacement - iFixit Repair Guide
Macbook Pro SSD Upgrade (2011/2012/2013) - YouTube
Replace your 2009-2012 MacBook Pro HD with an SSD
New 2.5" SSD won't fit - my MacBook pro says it's a mid 2012 15" model - Ask Different