This USB Host adapter allows you to connect a USB memory stick, an USB 2.0 memory card reader, or a keyboard to your Tablet & Cell Phone.
(some standard USB 2.0 devices need to connect the extral usb Cable if they consume too much power)
PC-free back Up of videos and photos from Tablet & Cell Phone to an external memory stick in a convenient way.
Connect to a keyboard for easier control of your Tablet & Cell Phone.
The extral USB Cable is the for USB Device(Like usb hard Disk, flash Disk), Can not the Tablet & Cell Phone.