Best SSD Upgrade for Old MacBook Pro (3 Great Choices)
Replace your 2009-2012 MacBook Pro HD with an SSD
MacBook Pro 15" Unibody Early 2011 Hard Drive Replacement - iFixit Repair Guide
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
How to Increase the Performance of an Old MacBook Pro [Tutorial]
OWC SSD Upgrade Kits For MacBook Pro 2011
How to upgrade your MacBook Pro with an SSD - CNET
Installing MacBook Pro 15" Unibody Late 2011 Dual Hard Drive - iFixit Repair Guide