This cable use for . connect your smartphone (with micro usb and support otg ) to a camera /camcorder ( with a 8pin usb) your phone/tablet will read the camera data . view the picture play the video . and copy them too. cable Length：30CM Product Function： 1.Connect a smartphome and tablet with a micro b usb 2.0 USB port ( such as htc lg sony huawei zte google with OTG OTG function ) to a camera white 8pin usb slot ( most camera has 8pin usb slot . support canon nikon olympus sony casio panasonic and more ..... ) 2.Offers reliable connectivity to an camera , tablet, or smartphone with a 8pin and micro usb port making it easy to transfer files or sync data. Product Features： 1. 8pin usb 2.0 - transfer data to and from all your micro usb 2.0 devices at speeds of up to 480mbps 2.Reversible Connector: micro usb user-friendly design lets you insert the connector the right way, every time