Lucco Practical Portable Car Charger Car Charging Unit Adapter with a Usb Port for Microsoft Surface 3 Pro 3 Tablet (Pro 3 Car Charger with Usb) Compatible with for Microsoft Surface 3/Pro 3 ONLY! Charge your surface pro3 in the car, convenient for travelers and business users. Input: 12V-24V. Output: 12V 2.58A. Weight: 0.19kg. Car charger with a 5v 1a USB PORT, you can also keep your cellphone and other usb devices chargered. Interface: Microsoft Pro3 dedicated magnetic suction interface.