Yes that's what it says, USB Audio Codec. The top one in the screenshot. That's the input that controls the ZED. And yes, if I make adjustments on the mixer, they are of course reflected in a change on the meters in Vegas. I know that's the correct device. I just don't understand why it says Microphone when it's not a Microphone. Do you think I need to dump this ZED mixer and get something else?