Focusrite Scarlett 2i4 Audio Interface, 2-in/4-out, 24bit/192kHz Includes: Main unit USB cable This item was given to me, and I don't know how to use it, so I haven't been able to confirm its operation. Please purchase only if you are okay with this. I was told it was working a few years ago. The knobs have a sticky feeling due to aging, but otherwise, there are no issues with the appearance.