Superior Performance: GAKUS Mac Book Air charger prides itself in its excellent performance. It will charge your Mac Book quickly without compromising its performance and longevity, making it the best companion for your precious Mac Book | Mac book Air charger 45W power adapter, AC 100-240V 50-60hz, output: 14.85V 3.05a 45W. Compatible with Mac Book Air 11"/13" inch from Mid 2012 ;Compatible with Mac Book Air (11-inch, Early 2015) ; Mac Book Air (13-inch, Early 2015) ; Mac Book Air (11-inch, Early 2014) ; Mac Book Air (13-inch, Early 2014) ; Mac Book Air (11-inch, Mid 2013) ; Mac Book Air (13-inch, Mid 2013) ; Mac Book Air (11-inch, Mid 2012) ; Mac Book Air (13-inch, Mid 2012); Part Number: A1436 A1466 | 45W Magnetic 5-pin DC Connector helps guide the plug into the system for a quick and secure connection.And an amber light lets you know that your notebook is charging, while a green light tells you that you have full charge | Maximum protection safety: This power adapter has been manufactured with the highest quality materials and includes multiple smart features, against over current, over voltage, over load, short-circuit protection and auto recovery, Certificated with UL/CE/FCC/RoHS standard | The cable is made from anti-friction and high-tough TPE material, the connector and the wire body connect perfectly. It has tested such as high-strength bending and tensioning, not easy to be frayed and is wear-resisting