T-Power Ac Adapter Compatible with 12V Microsoft Surface PRO 2, PRO 3 Pro 4 Docking Station Adapter 1627 Charger Power Supply Cord T-Power (TM) Made with the highest quality Brand-new Input Voltage Range: AC 100V - 240V ( 12V ) Compatibility: 12V Microsoft SURFACE PRO 2 , PRO 3 Pro 4 DOCKING STATION / 1627 Microsoft Surface DOCK - 3Q9-00001