SMAKN&reg; DC 12V to 5V Power Inverter Mini USB DC 5V Hard Wired Converter Kit Car Charger Cable for GPS Tablet Phone PDA DVR Recorder (MINI USB Straight)-2.5M Input voltage: 8-22V Output voltage: 5V Output Current: 3A MAX Up to 90% conversion Reverse polarity protection, over-current, over-temperature protection with resettable fuse.