How To: MacBook Pro Late 2011 Memory Upgrade - 16GB (2 X 8GB) : 6 Steps - Instructables
MacBook Pro: How to remove or install memory - Apple Support
16GB kit (8GBx2) Upgrade for a Apple MacBook Pro 2.2GHz Intel Quad-Core i7 (15-inch DDR3) Late-2011 System DDR3 PC3-10600 1333 Mhz by Xtremeram at Amazon.com
MacBook Pro 15" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
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
A1286 8GB RAM - Memory (PC3-10600) for MacBook Pro 15" 13" A1278 , MacBook Pro 17" (Early 2011-Late 2011)
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
16GB Memory Upgrade for MacBook Pro, iMac, and Mac mini
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
How To: MacBook Pro Late 2011 Memory Upgrade - 16GB (2 X 8GB) : 6 Steps - Instructables
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
How To: MacBook Pro Late 2011 Memory Upgrade - 16GB (2 X 8GB) : 6 Steps - Instructables
Apple MacBook Pro Late 2011 8GB Memory & SSD Upgrade - YouTube
8GB RAM Upgrade for 2011 MacBook Pro Core i5 & i7: $50 with Free Shipping | OSXDaily
MacBook Pro (15-inch, Late 2011) and MacBook Pro (15-inch, Early 2011) RAM Upgrade Dallas – Apple Mac Computer Repair Dallas , Laptop ,Desktop ,iMac , MacBook iPhone iPad Data Recovery ,Virus
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide