Mercury Aura Pro Express 6G Solid State Drive and Envoy Storage Solution @ TestFreaks
 

This bundle includes a faster SSD drive than the native MacBook Air models while providing an enclosure for the original Apple SSD. If you can use a screwdriver, then your can swap out your original SSD for the Mercury Aura Pro Express 6G SSD. These drives are designed for MacBook Air 2011 editions and come in 120GB, 180GB, 240GB or 480GB models.

http://blog.testfreaks.com/review/re...rage-solution/