Sometimes our house will be a blackout, at this time there is no router power supply, we can not access to the internet, but if we have this product, we can solve this puzzle. This is a boost USB cable, 5V power supply can be boosted to 9V, then if used with a mobile power charger, it can be a normal power supply to the router. Simple to use but practical products. And we also supply 5v to 12V cable for your project. You can choose anyone you want.
USB input voltage: 5V
DC output voltage: 9V/12V
DC plug size: 5.5mm(Outside Diameter)*2.1mm(Inside diameter)