Nektar SE25, USB MIDI Controller Keyboard, With 25 velocity-sensitive mini keys, 3 Velocity presets: Default, soft, hard, 6 Function button, Assignable PB1 & PB2 buttons for pitch bend, transpose, volume, pan & track, Assignable Part Two button for Octave, MIDI channel, Transpose, Layer & Latch, S Button for Sustain & Modulation, Micro USB Port, Compatible with any MIDI-enabled software on OS X, Windows & iOS, Class Compliant for real Plug and Play, Power supply via USB, Nektar DAW integration: Windows Vista, 7, 8, 10, MAC OS X 10.7 or higher, Nektar DAW Integration for Bitwig, Cubase, Garageband, Logic, Nuendo, Digital Performer, Mixcraft, Reason, Reaper, Sonar and Studio One, Dimensions: 335 x 100 x 21 mm, Weight: 0.4 kg, Includes Bitwig 8-Track Software (Download) and Micro USB Cable