Input: AC 100-240V (Worldwide use) Output: 15V 2.58A 44W Designed for Microsoft Surface Pro X，Surface Pro 7 Pro 6 Pro 5 (2017) Pro 4 Pro 3, Surface Laptop 3 2 1, Surface Go Surface Book. With Additional USB Port, Wall Plug and 6ft Power Cord Additional USB Port: 5V 1A USB 2.0.The USB port allows you to charge another device such as your phone at the same time