Voltage Input: AC 100-240V, 1.8A, 50-60Hz/output: 20V, 4.25A.Second generation of power adapter,This charger provides a fast and stable energy inflow. It also help maintain a healthy life cycle for batteries. Universal Compatibility: 85w power adapter for macbook Pro 13 inch-15 inch: A1278,A1502,A1344,A1465,A1502,A1425,A1435,A1466,A1398,A1424,ME293, ME294, ME664, ME665, MC975, MC976, MD506, MJLU2, MJLT2, MGXC2, MGXA2. Compatible with MacBook Air 45/60/85W with T-Tip 5/8 in interface(11 inch -13 inch, Mid 2012 Early 2017).Knowing what specific laptop model you have is important.Please check out carefully Before Purchasing. Easily Portable & Foldable PlugOur charger is lighter and smaller, and the plug can be folded 90°, you can even put the charger in the pocket of the clothes you wear with you and take it with you easily. This charger will take less space of your bag, easy to portable and use. Use it with confidence anytime, anywhere! High Quality & Safe Protection Certified: CE