Originally Posted By: mlord
Perhaps the 5 layers limit instead, though, depending on what is plugged in where and so on.


If Doug switches Device Manager to View -> Devices by Connection, and then has a browse around, he'll be able to get an idea of the USB topology.

If he can find his USB hubs under there, of course. Mine's under ACPI x64-based PC / Microsoft ACPI-Compliant System / PCI Express Root Complex / Intel USB ... (2 of them).
_________________________
-- roger