Macbook Pro 2011 Upgrade Kit - 8GB RAM & 480GB SSD, Sierra & Extra Software | eBay
How to Upgrade RAM on MacBook Pro, iMac & More | AVG
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
Apple MacBook Pro 2011 (Early) (Late) 13-inch 15-inch 17-inch MacBookPro8,1 MacBookPro8,2 MacBookPro8,3 SSD RAM OSX UPGRADE - ZD Laptop Service Centre