Actually, I was very interested in this unit, but I was very disappointed and had to return it .. On notebook it worked not at all, the error message "USB device defective". On desktop via USB hub-fed, I had a picture, then the same error message for a few seconds. The probable cause is that not sufficient as supplied by the USB port power due to the long connecting cable. For other USB devices with high power requirements, it is therefore common to this Connect two USB ports. This brings me to fraudulent labeling, on the packaging manufacturer, a device is shown with two USB ports, but included is a device with a single connection. That's my view fraud. This does not exclude that the device can fuktioniren on a correspondingly high power USB port.
