Cavo caricabatterie boost USB DC 5V a DC 9V/12V per router luci USB e altro
When carrying a treasure to power other devices. -Model: 9V, 12V (optional). 1 DC 5V to 9V /12V boost cable (optional). -usb line usb to dc5.5 2.1mm charging line power cord port 9v/12v pulse line usb line.