Insignia&trade; - AC Adapter Compatible with most electronic devices With a round-pin power connection or a USB charge cable for use with your existing device. Seven included common adapters allow versatile use. Converts 120V AC to 3-12V DC with 1300 mA maximum output So you can easily switch for devices requiring 3V, 4.5V, 6V, 7.5V, 9V or 12V DC output. USB port