Thank you for viewing. This is a 2IN/2OUT audio interface made by NATIVE INSTRUMENTS. It supports microphone input and line input. I was using it until just before listing it, and its operation has been confirmed in a Windows 11 environment. I used OBS to confirm the recording of microphone input, guitar input, and line input. I was able to record without any problems. High-quality input and output are possible at 24bit / 192kHz. It's a sturdy piece of equipment, typical of German manufacturing. Since I cannot guarantee all detailed operations, I will treat it as junk. Included items: Main unit only If you are interested, please consider it.