Alberto
I never found this particular Board, but I think an SG Audio Controller will do the same thing. I was trying to get the Streaming Audio from games that did not output Wave converted audio. I connected an SG Audio Controller to the CPU-4.1.1X that I sold you and I was able to get USB Streaming Audio from the controller. The Audio Controller has the USB 3.0, Digital Signal Port (RCA Jack), 24 Volt Power and Speaker Output (Left, Right and Subwoofer). I never tried to test the audio signal from the RCA jack, but you will get the discrete Left, Right and Subwoofer output from the Audion Controller. It doesn't look like I can attach a picture so I will send a picture via Email of the SG Audio Controller.
Gary