For sale is a Universal Audio Apollo X6 Thunderbolt 3 audio interface. As a sub-unit, it has been used very little. Operation is good, and I have confirmed that all channels are working without any problems. There are some scratches from mounting, but the operation is smooth. The contents include the main unit and the power supply. Since there is no original box, I am selling it at a lower price than the market average. First come, first served! The main unit has been transferred.