500GB SSD Upgrade Macbook Pro 13 15" 2011 2012 A1278 A1286 A1297 High Sierra | eBay
Finally did it! Upgraded my Late 2011 MBP with an SSD and 16GB of RAM and it runs like new! Couldn't be happier : r/mac
How to Install/replace/upgrade to Crucial SSD Hard drive in Macbook Pro late 2011 - non retina - YouTube
Amazon.com: 1TB / 1000GB 2.5" SSD Solid State Drive for Apple MacBook Pro (15-inch, Early 2011) (17-inch, Early 2011) (13-inch, Early 2011) Laptops : Electronics