Wholesale 12V 24V USB To DC5.5x2.1 powered usb Cable 

1.Powered USB a new design of USB interface, this new type of USB interface is the biggest difference with the traditional interface with independent power supply interface

2. USB interface to make up for the traditional biggest provide only the defects of 500 ma power support, after using this new interface even external device connected to the power consumption is bigger,

3. Support without external power supply;The new interface also support USB 1.1/2.0 standard at the same time