Zodiac Surface 65W 15V 4A Charger Power Supply For Microsoft Surface Book Surface Pro 3 & Pro 4 Tablet with 6Ft Cable USB Port Adapter Model 1706 Surface Book Charger Replacement Designed to match your Microsoft Surface Book, Surface Pro 3 and Surface Pro 4. Output:15V 4A ,USB 5V 1A 5W, Totally 65W,Come with 6Ft Power Cord Cable 65W Power Supply Accessories for Surface Book 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 6 Months Warranty with Replacement Coverage.