2-in/2-out USB audio interface that delivers studio-quality sound. There are scratches on the top, but there are no operational or connection issues. A third-party Thunderbolt 3 cable is included instead of the original USB-C cable. - Model Name: M2 - Input/Output: 2-in/2-out - Connection Type: USB - Sound Quality: Studio Quality - Included Items: Cable Thank you for looking.