For ages I think about how I can use my Apple TV without having to constantly re plug the HDMI cable, because, unfortunately, our TV is one of the models, which only have one input thereof. With this device, it is finally possible, albeit with a loss of quality, to connect the devices. Previously I had several HDMI switch devices tested and unfortunately had to find that they fulfill their function more bad than good. Without electricity, it works, but it always comes back to signal interference and disconnections. With the USB-feeding but the issue is resolved. You can even tap the picture and sound sepparat without additionally using a D / A converter for the optical audio signal with this converter. In the converter corner a real recommendation, because it delivers what it promises!