Super Power Supply&reg; AC / DC Adapter Charger for Microsoft Surface, Surface 2, Surface Pro, or Surface Pro 2, Windows 8 12V 2A 3.6A Interchangeable Wall Plug Input: 110-220V Output: 12V 3.6A Warranty: 1 Year Super Power Supply are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply