You could do USB header -> Hub -> Extensions and then expose each extension externally I suppose, but it would not be pretty. While it won't use your motherboard's USB-C header, there are PCIe header ...
I didn't really expect this to be a hard thing to find - I'd like to add Bluetooth to my desktop PC (X570, 3700X, etc.). I'm agnostic about wifi inclusion - it's happily plugged into the wall, which ...
With the prevalence of USB devices, it might be easy to mix up USB headers and ports, but there is a key difference between ...