There are two USB inputs (upstream) and four outputs (downstream). What is the difference in the inputs and do both support USB 3.0? Do the inputs control different outputs. In the User Guide the inputs are labelled 8-1 and 9-1 and the outputs 8-1 and 8-2 and 9-1 and 9-2. There is also a recommendation in the Guide to use either 9-2 or the port on the back of the monitor whenever possible. Why?
Suggestions and answers would be appreciated as the User Guide does not address them.
