Now you can download confidential information from your smartphone or tablet to an external drive without having to use a wi fitrade or mobile data connection this 8 in usb otg cable gives you the perfect solution for backing up your important research and other data collected while yoursquore on the road the cable turns the micro usb port on your mobile device into a usb otg host port so that you can connect a mini usb drive or other mini usb device such as a game controller directly to you