Nozza Ac Wall Power Adapter Charger 48w 12v-3.6a Power Supply for Microsoft Surface Pro 1 Pro 2/5v-1a USB Charging Port Power Supply Adapter for Microsoft Surface Pro 1Microsoft Surface Pro 1 Perfect work with Microsoft Windows 8 tablet PC and all kinds of microsoft 10.1inch tablet PC Connector Tip: Magnetic 5 pin Note: Will not work with New Microsoft Surface Pro 3