This is an audio interface. I purchased this as a secondary unit about two months ago, but I'm selling it because I haven't had a chance to use it. The sound quality was good with high resolution, but I didn't have much use for it in my setup. The analog circuits are superior to the latest Scarlett models, making it ideal for stepping up. I will ship the unit with the included power adapter. The unit's connector is Type-C, so it can be used with both Windows and Mac. If you would like same-day shipping, please confirm with a comment before purchasing.