Edit:
I figured it out.
The 10pin USB male connector on a mobo is set up like this:
NC---[] []---Empty
GND-[] []---GND
D+---[] []---D+
D- ---[] []---D-
5V_Dual---[] []---5V_Dual
and a 4pin is like this:
GND-[]
D+---[]
D- ---[]
5V_Dual---[]
So I plugged the 4pin in as you would think, and boob! it works.