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Check the listing for details. Voltage Converter USB 5v to 12v Step Up Power Regulator Line for Camera Router. Condition: New. Listed at 3.93 USD. USB A male Input: 5V; DC connector Output: 12V. (Note: Do not use the device for more than 12 watts. ) DC jack: 5.5x2.1mm. Build in identigication resistor, Reverse polarity protection, over current protection, over temperature protection, short circuit protection. ).