Can I upgrade the RAM on my 11' MacBook Air Mid 2011? I saw the specs mentioned that '2GB or 4GB of 1333MHz DDR3 onboard memory,” does it mean it cannot be
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Restored Apple MacBook Air Laptop Core i7 1.8GHz 4GB RAM 256GB SSD 13" MD226LL/A (2011) (Refurbished) - Walmart.com
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How to Upgrade RAM on MacBook Pro, iMac & More | AVG