How To: Install RAM in Macbook Pro (Unibody - 2009 to 2011) - YouTube
4GB RAM MEMORY FOR APPLE MACBOOK PRO CORE I5 2.3 GHZ 13" EARLY 2011 DDR3 NEW!!! | eBay
8GB 2X4GB NEMIX RAM Memory for Apple MacBook Pro 2011
Apple MacBook Pro Early 2011 Crucial Memory Upgrade - YouTube
MacBook Pro 15" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
MacBook Pro 13" Unibody Late 2011 RAM Replacement - iFixit Repair Guide
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
16GB 2x 8GB Apple MacBook Pro 2.2GHz Intel Core i5 15-inch Early-2011 Ram Memory | eBay
Macbook Pro (Late 2011) Memory Upgrade - Apple Community
16GB (2X8GB) SODIMM RAM Memory for Apple MacBook Pro Core i5 2.3 13" Early 2011 DDR3-10600 1333Mhz by Xtremeram at Amazon.com
Amazon.com: Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3 1333MHz PC3-10600 CL9 for Mac Book Pro (Early/Late 2011 13/15/17 inch), iMac(Mid 2010, Mid/Late 2011 21.5/27 inch), Mac Mini(Mid 2011) MAC RAM Upgrade :
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
How to boost your MacBook Pro performance | ZDNET
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
Macbook Pro RAM Upgrade Kit 8GB 2 x 4GB 2011 2012 A1278 A1286 13 15" 10600s DDR3 836905536579 | eBay
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
Original apple MacBook Pro 4gb ram (2x2gb) from early 2011 MacBook Pro | eBay
MacBook Pro: How to remove or install memory - Apple Support