I haven't bothered to search for this but a couple of years ago someone on this forum (quite unfairly IMO) posted something about how horrible CH Products equipment was, etc. etc. Michael Sexton from CH Products came here and posted that you should ALWAYS use POWERED HUBS with their gear.
I just shake my head sometimes at the apparent hard-headedness of the AH community. Why is this even being debated? If Michael (and empirically backed up by Skuzzy) doesn't convince you then why bother even discussing it? Gee wizz! I guess it's because you have some sort of problem and you, for whatever reason, blame the hub. A guy recently emailed me about some problem and I told him he needed to be using a powered hub. He replied saying that he wasn't going to do that because he had read here that "hubs are bad!" I just deleted the email. I really hate to act like that but this really is silly.
I guarantee you, six months from now, someone will post the question "Should I use my CH gear with a powered USB hub?" and this worthless discussion will crank up once again.