Vestax PBS-4 Audio Interface for Live Streaming with Stereo Mixer/Video Select Function The item will be shipped with the main unit, AC adapter, and USB cable. There are some minor scratches, but I don't think there are any major noticeable scratches. I have confirmed the operation of the item before listing it. I checked it using a Win7 PC. I don't know if it's compatible with current operating systems. I have done a simple check, but I haven't done a professional check using tools or a long-term check. I have tried to describe any noticeable points, such as the condition of the exterior, but there may be oversights. Also, there may be missing or damaged internal parts, wear and tear, etc., that I haven't been able to visually confirm. Furthermore, I cannot guarantee the operation of the item based on the operational checks I have described.