MacBook Air 13" 2011 1,7 Ghz 2011 A1369 EMC 2469 MacBookAir4,2. MacBook Air 13" 2012 1,8 Ghz 2012 A1466 EMC 2559 MacBookAir5,2. MacBook Air 13" 2011 1,8 Ghz 2011 A1369 EMC 2469 MacBookAir4,2. MacBook Air 13" 2012 2,0 Ghz 2012 A1466 EMC 2559 MacBookAir5,2.