Graphite M25 is a portable USB MIDI controller with a 25-key velocity-sensitive mini keyboard, four velocity-sensitive trigger pads with aftertouch (two banks, eight triggers), eight MIDI-assignable knobs, a programmable master encoder, and transport controls. It supports CC and program-change messages, offers four customizable presets, and includes octave and sustain buttons with pitch-bend and modulation strips. USB bus powered for iPad use and plug‑and‑play; includes a USB cable.