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
Restored Apple MacBook Air 13" A1369 1.7GHz Core i5 4GB RAM 128GB SSD 2011 (MC965LL/A) (Refurbished) - Walmart.com
Apple MacBook Air 11" 2011 1.6GHz Core i5 4GB RAM 480GB SSD MC969LL/A | A-Grade | eBay