Nektar SE61, USB MIDI Controller Keyboard, 61 Velocity sensitive keys, 7 Switchable velocity curves - 4 user presets, 3 fixed presets, Octave Up/Down and Transpose Up/Down buttons, 30 mm fader, DAW control for transport, track and patch selection and level, among others, Compatible with any MIDI-enabled software on OS X, Windows and iOS, Class Compliant for true plug and play, Power supply via USB, 6.3 mm jack connection for sustain pedal, Nektar DAW integration for all major DAWs including Bitwig, Cubase, Garageband, Logic, Nuendo, Digital Performer, Mixcraft, Reason, Reaper, Sonar and Studio One, Dimensions (W x D x H): 985 x 197 x 69 mm, Weight: 3 kg, Incl. Bitwig 8-Track software (download)