MacBook Pro: How to remove or install memory - Apple Support
macos - What is the maximum amount of RAM a 2011 MacBook Pro can utilize? - Ask Different
MacBook Pro 15" 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
Macbook Pro RAM Upgrade Kit 8GB 2 x 4GB 2011 2012 A1278 A1286 13 15" 10600s DDR3 836905536579 | eBay
Amazon.com: A1382 Battery for MacBook Pro 15 inch A1286 Early 2011 Late 2011 Mid 2012 New Replacement Laptop Battery (7200mAh 10.95V/78.84Wh 25 Months Warranty) : Electronics
2010 Macbook Pro 15" A1286 RAM Upgrade - YouTube
Apple MacBook Pro Core i7 2.8 GHz Specs (Mid 2010 15", BTO/CTO, MacBookPro6,2 - A1286 (EMC 2353)) - Techable