There are two devices connected to the Hub inside the radio. It does not require configuration or drivers and is transparent to the user.
Just like a Hub, you might use on your desk its function is to provide multiple USB ports with only one cable from the PC or Laptop. Once the USB cable is connected to the radio the first device in the data path is a USB Hub. The good news is Kenwood, Icom, Yaesu and even SignaLink share a similar architecture, often down to the same device part numbers and software drivers. It helps to have a basic understanding of the computer interface within the radio. A number of people have had difficulty setting up their radios using the USB interface for WSJT-X and FT-8.
