Cavo di ricarica portatile USB DC 5V a DC 9V12V per router e purificatori d'aria
When carrying a treasure to power other devices. -usb line usb to dc5.5 2.1mm charging line power cord port 9v/12v pulse line usb line. 1 DC 5V to 9V /12V boost cable (optional). -Output interface: 5.5 2.1mm DC.