Would adding a PCI expansion card fix "not enough USB controller resources"?

I am having the rather annoying problem of whenever I add any new USB device to my computer I get an error that says "Not enough USB controller resources" and the device never initializes.

I have googled the problem and it seems ad though the Intel xHCI controller does not have enough available endpoints left to add the attached device (there is a lot plugged in).

So my question is thus: would adding a PCI card with more USB ports fix the problem? I am thinking that maybe the expansion card might come with its own controller and therefore more resources, or am I wrong?

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