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#11
Thanks for the updated brief. By all means it should not appear twice as you may know.
I think you may have a few things going on here. Your USB controllers may be messed up. "Overloaded with registration data to manage" so to speak. This happens when we insert USB devices in various slots instead of using the same. Mostly a Registry overload. The other may be the wrong driver for your phone, but we will see.
You may want to look at this to get glimpse: USB Device Registry Entries (Windows Drivers)
Let's see if we can find a tutorial, fixit, or a troubleshooter to fix it.
FYI, USB3 ports are usually blue whereas USB2 ports are black. Might depend on OEM, so you may want to check on the Dell site or your manual.