Microsoft Surface 65W Power Supply for Surface Book, Surface Laptop, Surface Pro, Pro 4, and Pro 3 Power Supply made exclusively for Surface Book, Surface Laptop, Surface Pro, Surface Pro 4, and Surface Pro 3 Designed to match the look and feel of your Surface, the Microsoft Surface 65W Power Supply for Surface Book & Pro quickly recharges the battery and the USB port allows you to charge another device such as your phone at the same time The magnetic snap-in power adapter attaches to your Surface with ease The slender cord and adapter allow access to outlets behind furniture or in other tight spaces