Input: 100-240V 50/60 Hz ; Output:15V-4A 65W Additional USB Port: 5V-1A 5W. The USB port allows you to charge another device such as your phone at the same time Designed for Microsoft Surface Book, Surface Go, Surface Pro X, Surface Pro 7, Surface Pro 6, Surface Pro 5, Surface Pro 3 Pro 4 and Surface Laptop 3 2 1; Microsoft Model 1706. With Additional USB Port, Wall Plug and 6ft Power Cord