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MacBook (2006–2012) - Wikipedia
MacBook Pro 15" Unibody Late 2008 and Early 2009 RAM Replacement - iFixit Repair Guide
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How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
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RAM Upgrades For Apple MacBook (2009 - 2010) from OWC
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How To Upgrade RAM On MacBook Air? - YouTube
Apple MacBook Air A1304 13″ Mid 2009 Ram Replacement – iFixGeek iPhone , Mac and PC Service Dallas Plano Richardson Texas