This is more a general question but what is different on the FRONT USB ports on most OEM's pcs vs. the rear. Oftentimes, things like a USB stick or a external hard drive won't work up front, but the ...

USB Device Tree Viewer showed me why identical USB-C cables behave differently.

Are you trying to connect two of the front panel ports to the single Type E connector on the motherboard? You could use a Type-E to 19 pin header adapter, then connect that to a 20pin to a 9-pin ...