Fortunately for me, my SX-46 has a built in hub that allows me to operate my camera, auto-guider, and filter with just 1 USB cable. The only other cable I need is for the mount. My cables are short (<1 meter) so a powered USB hub is not really necessary. I just thought it would be a good Idea to have it.
All is well now and everything is working wonderfully.
BTW, nice car in the profile pic!