Suph Magnetic Mobile Power Charger AC Adapter for Microsoft Surface PRO 3 12 Inch Tablet (pro3 adapter three holes) Compatible with Microsoft Surface Pro 3 Only!! (Not Fit for Surface RT/ Pro/ Pro2!!) I/C Chip technology prevents your tablet's battery overcharging. Easy operation and convenient use, it is perfectly suitable for travelers and Businessman. Replacement for lost or damaged charger, USA standard plug version. Come with the 5V 1A USB female port, can charge the Surface Pro 3 by this USB port conveniently.