DODAUG for MacBook Air Charger 45W T-Tip Magsafe 2 Power Adapter Replacement Charger Compatible MacBook Air 11 inch and 13 inch After Mid 2012 Compatible withapple MacBook Air 11" & 13" Inch. Compatible with MacBook Air (13-inch, 2017); MacBook Air (11-Inch, early 2015); MacBook Air (13-inch, Early 2015); MacBook Air (11-Inch, early 2014); MacBook Air (13-inch, Early 2014); MacBook Air (11-Inch, Mid 2013); MacBook Air (13-inch, Mid 2013); MacBook Air (11-Inch, Mid 2012); MacBook Air (13-inch, Mid 2012) High charging efficiency: this charger adapts Synchronous rectification technology which is greatly reduces the loss of the power output, improving the conversion efficiency and reducing the heating of the MacBook Air charger Upgraded smart chip: this DODAUG charger adopts smart chip and scientific power management technology, effectively prevent power overcurrent, Overcharge, short circuit, excessive release, and stabilize voltage, making it the best companion for your precious Macbook. Sturdy surface: adopting Ultrasonic stamping process to make this MacBook charger, you won't worry about accidental damage to the charger. These adapter cable adopt highest quality materials that are against over fraying/bending/damaging, Long use life. Replacement charger for your MacBook Air 11" & 13 worked as original charger, small size, light weight, long cable, Multi-functions for your business trip, home & School backup. If you have a MacBook Air notebook, you shall have one.