Ubook Power Supply Technical specifications

I am looking for an automotive (12V DC input) power supply / charger that will work with a Ubook. the difficulty I am having is identifying the connector that plugs into the side if the Ubook. Does anyone know what the connector is and happen to have a part number? Sourcing a 24W 12 volt regulated power supply relatively easy, if I could just Identify the proper plug.

Best Regards.