There is literally no room in the Air for socketable memory. Look at the teardown (http://www.ifixit.com/Teardown/MacBook+Air+13-Inch+Mid+2013+Teardown/15042 ht

There is literally no room in the Air for socketable memory. Look at the teardown (http://www.ifixit.com/Teardown/MacBook+Air+13-Inch+Mid+2013+Teardown/15042 http://www.ifixit.com/Teardown/MacBook+Air+13-Inch+Mid+2013+...) if you don't believe me. This thing is 80% battery, 20% highly dense circuit board. There's barely enough room on there for an upgradeable SSD. Until they make a standard DDR3 socket that's smaller, there's simply no way to fit removable memory into a computer that thin.