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upgrade - 32gb of RAM on a 2011 or 2012 15/17-inch MacBook Pro using Crucial's 16gb single DIMMs - Ask Different
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MacBook Pro "Core i5" 2.4 13" Late 2011 Specs (Late 2011 13", MD313LL/A, MacBookPro8,1, A1278, 2555*): EveryMac.com
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