How to Upgrade RAM on MacBook Pro, iMac & More | AVG
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Install memory in an iMac - Apple Support
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
4GB iMac Memory for Early 2008 Model 8,1
OWC 6GB (2GB + 4GB) PC8500 DDR3 1066MHz SO-DIMMs Memory RAM Upgrade Compatible with Late 2008, Early 2009, Early 2010 MacBook, MacBook Pro Unibody Models, Mac Mini, 2009 iMac (OWC8566DDR3S6GP) at Amazon.com
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