USB cable is universally used nowadays. When the power of telephone is run out, people usually use USB cable to empower it. And it is normal that people take a USB cable and power bank to everywhere in case of running out their phones' power. It is such an ideal items for installing poker scanning camera and no one will discover even if you put it on the table during gambling. USB cable scanning camera is one of our latest poker scanning camera. You can use it to scan the barcode marked cards and then your phone will analyze the information and report you the result. Do you want to know more about it, feel free to get in touch with us.