Is there much difference between usb and pci adaptors?

esaglik

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Apr 20, 2010
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for a new build i want to add wireless capabilities, the ports i have left in the build are a pci legacy, and a pcie x1, ideally the legacy is going to be for my studio sound card and the x1 would be for something like a normal every day use soundcard. so usb seems like the way to go, however i want to use a wireless n 300mb/s adaptor, would this be slowed down by the fact that its operating through usb? is an "every day" sound card necassary or is the internal good enough for that?