Metron is a 16 track trigger and gate sequencer for Eurorack modular synthesizer systems. This module is in great condition and includes the box. Here's a quick overview of its features from the fine folks who created it: Easy-to-read Button Matrix lets you see 4 tracks and 16 steps at a time. Create quick 16 step sequences or expand out to 16 pages for a max pattern length of 256 steps! Pattern length function allows for each track to be a different length. Odd meters recommended! Intuitive counter displays let you know where you are at and how much time has passed. Random pattern generation as well as deep probability settings. FX mode allows for quick rolls, momentary fills, mutes, manual triggers and more. Included memory card lets you save patterns and states, as well as backing up and managing up your sequence data via a computer. Send presets to compatible modules via midi on the S.bus connection. ...and so much more. Feel free to reach out with any questions you may have.