My goal is to connect four USB 2.0 webcams – Microsoft LifeCam Cinema, which uses about 48% of USB 2.0 bandwidth – to my computer using USB 3.0. I added a Plugable USB 3.0 card to my computer, and tried two different USB 3.0 hubs (TRENDnet TU3-H4 and a D-Link DUB-1340). For both hubs, I can get just one camera to stream in parallel in the recording software I use, which likely indicates a bandwidth issue. Before attempting USB 3.0, I managed to get 2 cameras to stream per internal (motherboard) USB 2.0 host controller, but lost streaming for one of the cameras, e.g., once mouse and keyboard were on the same host controller. And the issue is not a power issue; the cameras require 0.5 A each, while the hubs have 4 A power supplies.
I checked the Device Manager on Windows 7, and the D-Link USB 3.0 hub appears as both “Renesas Electronics USB 2.0 Hub” and Renesas Electronics USB 3.0 Hub." The “Parent” property of the LifeCam appears to point to the 2.0 Hub and not the 3.0 Hub, which, in turn, may be the reason I run into what looks like bandwidth issues. I tried disabling the “Renesas Electronics USB 2.0 Hub,” but then the LifeCams are no longer recognized.
Any suggestion? Thanks,