DC 5.5X2.1mm/2.5mm Power Plug To12V Powered usb

This 12v to Hosiden + USB B Powered USB cable is backed by lifetime warranty to ensure long-lasting durability and optimum performance. Features Power your peripheral and provide USB connectivity with a single cable. Compatible with USB 1.1/2.0 standards and Powered USB peripheral devices Eliminates the use of a power adapter Reduces clutter and frees up space Plug and Play Technical Specifications
 
1.Powered usb cable provides a single cable connection that supplies both the standard USB communication 
signals and two additional wire pairs for extra power. 
2.The design of PoweredUSB and it's connectors allow for hot-plugging. 
3.This combined with Plug-and-Play operating systems allows  Powered usb cable  to be easily maintained and 
supported in the retail environment.
4.One of the limitations of standard USB is the amount of +5V current available to supply attached peripherals. 
Normally, 500mA is available at each host port and each powered external hub port. 
5.his amount of current is sufficient for most PC type peripherals like mice and keyboards. 
6.When the power requirements exceed the 500mA limitation, external peripherals require the use of an e
xternal power supply (brick) to supply the necessary power requirements. 
7.This limitation takes away from the true "Plug-and-Play" idea conceived for USB peripher