Microsoft Surface Pro 3 Tablet 36W Power Supply (RC2-00001) (Certified Refurbished) This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The resulting product includes all relevant accessories, comes with a minimum 90-day warranty, and may arrive in a generic box. Only sellers who meet a high performance bar may offer Certified Refurbished products on Amazon.com Works exclusively for Surface Pro 3 36W Power Supply for Surface Pro 3 The USB port allows you to charge another device such as your phone at the same time. 36W Power Supply quickly recharges the battery