This USB Power Boost line DC 5V to DC 9V / 12V Powerbank to Router and Onu Step UP Module USB Converter Adapter Cable is a must-have for anyone who needs to power their router or Onu device on the go. With its 2.1x5.5mm plug, this cable is compatible with a wide range of devices and can convert the power from your power bank to the voltage required by your router or Onu. Its compact size makes it easy to carry with you wherever you go, and its durable construction ensures that it will last for years to come. Whether you're traveling, camping, or just need a reliable way to power your devices on the go, this USB Power Boost line is the perfect solution.