The OEM Apple Magsafe 2 45W Power Adapter (MD592LL/A) is a brand new and sealed power adapter designed specifically for Apple products. This white adapter is compatible with the Apple MacBook Air and provides a voltage of 14.85V with an output current of 3.05A, ensuring fast and efficient charging for your device. With the Apple brand name, you can trust that this power adapter will meet the highest standards of quality and compatibility for your MacBook Air.