【Excellent Condition】Solid State Logic SSL2 Audio Interface with 4K Switch and Legacy Switch 【Model】SSL 2 【Brand】Solid State Logic 【Type】USB Audio Interface 【Number of Channels】2 channels 【Monitor Level Adjustment】Yes 【Headphone Output】Yes 【Legacy Mode】4K Legacy Mode 【Included Accessories】USB type A↔type C, USB type C↔type C cables (one of each) Operation has been confirmed. I am selling this because I purchased a new product and no longer need it. I am a non-smoker, so there is no dirt or smell from cigarettes, so please rest assured! Operation has been confirmed and is stable, but as it is an electronic device, there is a possibility of compatibility issues, so please consider this only if you understand. Returns are not accepted to prevent product substitution. Thank you!!