Installing MacBook Pro 15" Unibody Mid 2012 Dual Hard Drive - iFixit Repair Guide
MacBook Pro (Howto): Install A Solid-State-Drive
Apple Adding Last MacBook Pro With CD Drive to Vintage Products List - MacRumors
Amazon.com: 2nd HDD SSD Hard Drive Caddy for Apple MacBook Pro Unibody Mid- 2012 A1278 13-Inch Laptop MD101LL/A MD102LL/A MD101 MD102, SATA3 Second Solid State Drive Enclosure, CD DVD SuperDrive Optical Bay New :
Mid-2012 Macbook Pro (SSD) Hard Drive Upgrade How To - YouTube
Replace your 2009-2012 MacBook Pro HD with an SSD
Apple Proprietary SSDs: Ultimate Guide to Specs & Upgrades | BeetsBlog
Amazon.com: INDMEM SATA SSD 1TB 3D TLC Flash Hard Drive with Tools for MacBook Pro Retina Mid 2012, Late 2012, Early 2013 A1425 (EMC 2557/2672), A1398 (EMC 2512/2673) : Electronics
Best Buy: Apple MacBook Pro 13.3-inch 500GB Intel Core i5 Dual-Core Laptop (MD101LL/A) Mid-2012 Pre-Owned Silver A1278
OWC SSD Upgrade Kits For MacBook Pro 2012
Apple MacBook Pro (13-inch, Mid 2012) - i5 2.5 GHZ 8GB RAM 240GB SSD | eBay
Amazon.com: MCE Technologies 2TB Internal SSD Flash Upgrade for 13" and 15" MacBook Pro Retina (Mid 2012 - Early 2013) - Includes Installation Kit! : Electronics
Amazon.com: MCE Technologies 2TB Internal SSD Flash Upgrade for 13" and 15" MacBook Pro Retina (Mid 2012 - Early 2013) - Includes Installation Kit! : Electronics
Does the mid-2012 13 MacBook Pro have an M.2 slot that I can use for an Intel Optane memory upgrade? - Quora
MacBook Pro (13-inch, Mid 2012) Hard Drive (and possibly RAM) replacement : r/mac
Best SSD for MacBook Pro Mid-2012 (Upgrade Guide)
macbook pro mid 2012 hard drive upgrade to SSD SATA recommendation - Ask Different
Apple MacBook Pro (13-inch, Mid 2012) - i5 2.5 GHZ 6GB RAM 120GB SSD | eBay