OFFTEK 4GB Replacement Memory RAM Upgrade for Apple MacBook Pro 2.5GHz Intel Core i5 - (13-inch) (DDR3) (Mid-2012) (DDR3-12800) Laptop Memory
MacBook Pro 15" Unibody Late 2008 and Early 2009 RAM Replacement - iFixit Repair Guide
Memory RAM Upgrades for MacBook Pro (2012 - Late 2016)
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
Amazon.com: Odyson - Logic Board 1.4GHz C2D, 2GB RAM Replacement for MacBook Air 11" A1370 (Late 2010) : Electronics
Is It Worth It to Upgrade RAM on a Macbook Pro?
13-inch MacBook Pro Mid 2009 Memory Installation Video - YouTube
17-inch MacBook Pro Mid 2010 Memory Installation Video - YouTube
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Memory/ RAM Upgrades For Apple MacBook Pro 2011 from OWC
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16GB Memory Upgrade for 2010 MacBook Pro and Mac mini