Clear instructions on my hardware and the ports to use for bandwidth

Hi,
I need some clarifications before I go ahead with my plan. Assuming that I have my audio device on a controller and then I give it a full sub bandwidth, what sub ports should it run on? What are the sub controllers on my mob? Secondly, if I use my mouse and keyboard on the sub 1 hub, will this decrease the bandwidth consumption? If it does, how will the response be? Lastly, does my sate/sub port share the bandwidth or does it have its own?
