Original apple MacBook Pro 4gb ram (2x2gb) from early 2011 MacBook Pro | eBay
Adamanta 16GB (2x8GB) Memory Upgrade Compatible for Apple Mid 2010, Early 2011, Mid 2011, Late 2011 iMac, MacBook Pro, Mac Mini DDR3 1333Mhz PC3-10600 SODIMM 2Rx8 CL9 1.5v Module RAM at Amazon.com
Apple MacBook Pro Late 2011 8GB Memory & SSD Upgrade - YouTube
Apple MacBook Pro 17" 2011 Memory Ram 4GB PC3-10600 DDR3-1333 SDRAM Samsung | eBay
How To: Install RAM in Macbook Pro (Unibody - 2009 to 2011) - YouTube
Samsung ram Memory 8GB kit (2 x 4GB) DDR3 PC3-12800,1600MHz for 2012 Apple MacBook Pro's, iMac's and 2011/2012 Mac Mini's at Amazon.com
Adamanta 16GB (2x8GB) Apple Memory Upgrade DDR3L 1600MHz SODIMM Compatible for iMac (Mid 2011, Late 2012, Early/Late 2013, Late 2014, Mid 2015), MacBook Pro (Early/Late 2011, Mid 2012), Mac Mini at Amazon.com
Memory/ RAM Upgrades For Apple MacBook Pro 2011 from OWC
How to Upgrade RAM in MacBook Pro 17" 2011 16GB Install Tutorial - YouTube
Boost 2011 MBP Performance with 1600MHz RAM
Upgrading the Late 2011 MacBook Pro to 16 GB of RAM! - YouTube
16GB Kit 2X8GB DDR3 Memory for Apple MacBook Pro 13-inch Core i5 2.4GHz Late 2011 MD313LL/A A1278 SODIMM RAM (PARTS-QUICK Brand) at Amazon.com
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
How To: MacBook Pro Late 2011 Memory Upgrade - 16GB (2 X 8GB) : 6 Steps - Instructables
MacBook Pro 15" Unibody Late 2011 RAM Replacement - iFixit Repair Guide
How to Upgrade RAM on MacBook Pro, iMac & More | AVG
hardware - Would this memory work on a MacBook Pro (17-inch, Early 2011)? - Ask Different
16GB 1333 MHz DDR3 Memory for 2011 MacBook Pro and iMac