16GB 1333 MHz DDR3 Memory for 2011 MacBook Pro and iMac
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
How to Increase the Performance of an Old MacBook Pro [Tutorial]
Apple 15-inch MacBook Pro (Late 2011) Review
macos - What is the maximum amount of RAM a 2011 MacBook Pro can utilize? - Ask Different
A-Tech 16GB (2x8GB) RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
upgrade - 32gb of RAM on a 2011 or 2012 15/17-inch MacBook Pro using Crucial's 16gb single DIMMs - Ask Different
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
15" Apple Macbook Pro Late 2011 | Intel Core i7 2.50GHz | 8GB RAM | 256GB SSD | eBay
How to Upgrade RAM on MacBook Pro, iMac & More | AVG
Apple 15-inch MacBook Pro (Late 2011) Review
Used: MacBook Pro (13-inch, Late 2011) | Mac-Ave
How to Increase the Performance of an Old MacBook Pro [Tutorial]
How To: MacBook Pro Late 2011 Memory Upgrade - 16GB (2 X 8GB) : 6 Steps - Instructables
Apple 15-inch MacBook Pro (Late 2011) Review
MacBook Pro: How to remove or install memory - Apple Support