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8GB RAM Upgrade for 2011 MacBook Pro & Mac Mini Core i5 & i7 – $34 | OSXDaily
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
Apple MacBook Pro: RAM upgrade (HowTo)
MacBook Pro: How to remove or install memory - Apple Support
How To: MacBook Pro Late 2011 Memory Upgrade - 16GB (2 X 8GB) : 6 Steps - Instructables
MacBook Air 13" Mid 2011 Teardown - iFixit
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MacBook Pro 15" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
How To: MacBook Pro Late 2011 Memory Upgrade - 16GB (2 X 8GB) : 6 Steps - Instructables
A-Tech 8GB 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 Module at Amazon.com
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
MacBook Pro 13" (Late 2011) 1600MHz Ram - Apple Community
MacBook Pro: How to remove or install memory - Apple Support
How to Upgrade RAM in MacBook Pro 17" 2011 16GB Install Tutorial - YouTube
Upgrading the Late 2011 MacBook Pro to 16 GB of RAM! - YouTube