- Proprietary Slimkey Keybed: A new 32-note keyboard with velocity and aftertouch, designed by Arturia for keyboardists
- Polyphonic Sequencer / Arpeggiator: Each sequence can have 64 steps; each step can have up to 8 notes. Step-sequencer with 8 memories or Arpeggiator mode with 8 pattern styles. Set swing and gate length from the keys
- Chord Play Mode: Set chords and then play them back with a single note. Can also be used in Arpeggiator mode for chord arpeggiations
- Performance Controls: Capacitive-touch pitchbend and modulation strips
- Digital & Standalone: The USB port allows for standard, class-compliant, bus-powered operation. Connect an optional USB power adaptor to use KeyStep in a standalone situation
- The three CV outputs send pitch and gate signals, along with a velocity, aftertouch, or mod. ribbon signal, to control an analog instrument or module