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Apple MacBook Pro 13" MD313LL/A A1278 Core I5 4GB 500GB HDD 2.4GHz (2011) (Grade C Refurbished) - Walmart.com
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Adamanta 16GB (2x8GB) Compatible for MacBook Pro (Early/Late 2011, Mid 2012), iMac (Mid 2011, Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini DDR3L 1600MHz SODIMM Memory Upgrade at Amazon.com
SOLVED: Can I insert 16Gb RAM into MacBook Pro early 2011? - MacBook Pro 13" Unibody Early 2011 - iFixit
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