Open box new condition. In original box with manual and power cable. Tested and working perfectly. 

The M-Audio M-Track Solo is a 2-channel USB audio interface designed for high-quality audio recording in a portable format. It supports 16-bit/48kHz audio resolution and is compatible with Mac, PC, and iOS devices. The interface features a single Combo Crystal Preamp with phantom power, making it suitable for connecting microphones and guitars. It also includes a stereo line input for connecting digital pianos or other stereo quarter-inch devices. The M-Track Solo is powered by USB, eliminating the need for an external power supply and making it easy to use on-the-go. It offers zero-latency monitoring through both RCA outputs and a 1/8-inch headphone output.