Amazon.com: 480GB 2.5" SSD Solid State Drive for Apple MacBook Pro (15-inch, Early 2011) (17-inch, Early 2011) (13-inch, Early 2011) Laptops : Electronics
OWC 8GB (2 x 4GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac, 2011-12 Mac Mini, and 2011-2012 MacBook Pro (Non-Retina Display) Models (OWC1600DDR3S08S) at Amazon.com
Amazon.com: HIGHFINE 2nd 2.5'' SATA HDD SSD Hard Drive Disk DVD CD ROM Optical SuperDrive Caddy Tray Adapter for Apple Unibody MacBook/MacBook Pro 13 15 17 Early mid Late 2008 2009 2010 2011 2012.etc : Electronics
Amazon.com: 480GB 2.5" SSD Solid State Drive for Apple MacBook Pro (15-inch, Early 2011) (17-inch, Early 2011) (13-inch, Early 2011) Laptops : Electronics
Proven: Fastest MacBook Pro 17” Inch 2011 2.5Ghz - 3.6Ghz / USB 3.0 / 16g 2133MHz RAM / Dual SSD RAID 0 Loaded (Best Build)
How to Upgrade MacBook Pro Retina SSD -mac&egg-
240GB SSD for Apple MacBook Pro Mac Mini 2007 2008 2009 2010 2011 2012 2.5" SATA 740617261219 | eBay
Replace your 2009-2012 MacBook Pro HD with an SSD
Kingston KC3000 SSD review: Chart-topping speed at a fantastic price | PCWorld
Upgrading 2013/2014 Macbook Pro SSD to M.2 NVMe | MacRumors Forums
Replace your 2009-2012 MacBook Pro HD with an SSD
Apple MacBook Pro Early 2011 - 13-inch 2.7GHz Core i7 Apple Memory/RAM & SSD Upgrades | Kingston
How to Increase the Performance of an Old MacBook Pro [Tutorial]
Proven: Fastest MacBook Pro 17” Inch 2011 2.5Ghz - 3.6Ghz / USB 3.0 / 16g 2133MHz RAM / Dual SSD RAID 0 Loaded (Best Build)