Upgrading non-upgradable RAM inside a mid-2009 MacBook Air to a specification that Apple never sold. This little guy is now perfectly happy running in 4GB 1067MHz DDR3 RAM instead of a measly
MacBook (2006–2012) - Wikipedia
Unibody MacBook (late 2009) review | Engadget
How to Upgrade MacBook Air Hard Drive (Original/2008/2009): EveryMac.com
Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 RAM for Mac Book (Mid 2010 13-inch), Mac Book Pro (Mid 2010 13-inch), iMac (Late 2009 27-inch), Mac Mini (Mid 2010)
13-inch MacBook Late 2009 & 2010 Memory Installation Video - YouTube
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How to Upgrade RAM on MacBook Pro, iMac & More | AVG
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mac - Would a Macbook Air (2010) be able to use a 8GB RAM module once one exists? - Super User
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How to Upgrade Mac RAM | 2022 Guide for All Models | Avast
How to Upgrade A1342 Unibody White MacBook RAM (Memory): EveryMac.com | Macbook 13 inch, Macbook, Macbook pro