Satisfication Guarantee: Our team of professionals is constantly working to make you happier. We provide technical support for customers 24/7. Fully compatible: Part Number:A1436 A1466 A1465 A1435; Mac Book Air (13-inch, Mid 2012); Mac Book Air (11-inch, Mid 2012); Mac Book Air (13-inch, Mid 2013); Mac Book Air (11-inch, Mid 2013); Mac Book Air (13-inch, Early 2014); Mac Book Air (11-inch, Early 2014); Mac Book Air (13-inch, Early 2015); Mac Book Air (11-inch, Early 2015); Mac Book Air (13-inch, 2017). Security Assurance:Replacement mac air chargers manufactured with the highest quality materials and include multiple smart features safeguarding against over current,over voltage,over load,short-circuit protection and auto recovery,CE/FCC/RoHS certified. Input: AC 100-240V 50-60Hz, Output: 14.85V 3.05A 45W. Knowing what specific Mac model you have is important.Please check out carefully Before Purchg. Features Magnetic DC Connector:The magnetic DC connector makes it easy to disconnect harmlessly the cord if someone should trip over it,your Mac Book Air stays put safely,and also helps prevent fraying or weakening of the cables over time.