I have a case which has some front panel USB 2.0 sockets and the usual 2.0 connector. It also has a front panel USB 3.1 Gen 1 socket with a separate 3.1 Gen 1 cord.
My motherboard, however, which is an ASUS WS C422 SAGE/10G only has 3.1 connectors. The front panel USB connector is labeled U31G2_E3 and has a 20-pin USB 3.1 Gen 2 female socket. The motherboard documentation says nothing about backwards compatibility.
The motherboard also has a USB 3.1 Gen 1 header. Documentation that came with the motherboard says that is DOES have backwards compatibility with 2.0. Currently, I have the 3.1 Gen 1 cord from the front of the case plugged into this header.
So, the question is... how do I get the USB 2.0 in the front of the case connected to the motherboard? I seem to have two options:
(1) Find some kind of adapter that will allow me to plug the USB 2.0 cord into the 3.1 Gen 2 header. This assumes that 3.1/2 is backwards compatible with USB 2.0 and that such an adapter exists.
(2) Unplug the 3.1/1 cord from the front of the case from the 3.1/1 header on the motherboard, plug in a 3.1/1 "module" (mentioned in motherboard manual) whatever that is, and that module will provide both a 3.1 and a 2.0 header on it maybe? I have not seen what this module looks like so I don't know.
Just so we are clear, on the left is what i have coming from the front panel, on the right is a 3.2 g1 motherboard header: