Apple Macbook Air 3.1 Late 2010Apple MC506LL/A 1.4 GHz Core 2 DuoApple Typ 020-6920-BApple MC505LL/A 1.4 GHz Core 2 DuoApple Typ A1375Apple Macbook Air 11" A1370Apple MC506LL/A BTO 1.6 GHz Core 2 Duo