MacBook Air 11" 2010 1,4 Ghz 2010 A1370 EMC 2393 MacBookAir3,1. MacBook Air 11" 2010 1,6 Ghz 2010 A1370 EMC 2393 MacBookAir3,1. MacBook Air 11" 2011 1,6 Ghz 2011 A1370 EMC 2471 MacBookAir4,1. MacBook Air 11" 2012 1,7 Ghz 2012 A1465 EMC 2558 MacBookAir5,1.