Surface Pro 3 Charger,XIEMIN Power Supply Adapter for Microsoft Surface Pro 3 12 Inch Tablet with a 5v 1a USB Port Fits for Microsoft Surface Pro 3 12 Inch Tablet I/C Chip technology prevents your tablet's battery overcharging. Specially designed with a 5V 1A USB port for you to connect other device while charging for your pro 3 tablet, like iphone, samsung note, mp3. Easy to carry around, on trip and travel. The length of the cable is 2.5m