Thank you for viewing. I am selling this as I haven't used it much after using it a few times. The included Cubase AI has been used. This is not the MK2 version. There are no scratches or stains on the box, instruction manual, or the main unit. The main unit functions perfectly. No pets, no smokers. 6-channel USB audio interface with effects. - Brand: YAMAHA - Model: MG06 - Connection Type: USB - Number of Channels: 6 - Monitor Function: Yes - Effect Function: Yes - Headset Connection: Yes - Output Terminals: Stereo Output - AUX Input: Yes Thank you for viewing.