Ventisonic&reg; Car Charge Adapter Power Supply for Microsoft Surface Rt 10.6 Windows 8 Tablet Charger 12V 2A Input: 12-24V 50/60Hz. Output: DC 12V 2A Supports portable Surface RT 10.6 Tablet This unit charges your device when connected to the CAR Charger adapter. Compatible models : Microsoft Surface 10.6 inch Windows 8 RT NOTE: it only work in Microsoft Surface 10.6 inch Windows 8 RT, Does not work in Microsoft Surface 10.6 inch Windows 8 PRO Package includes: 1x Standard Car Charger Adapter