The KeyRig 25 MIDI controller keyboard from M-Audio can turn a Mac OS X or Windows XP computer into a fully featured keyboard workstation. Ableton's Live Lite software provides recording and editing functions, while the M-Audio Key Rig software (Windows only) includes four virtual instrument modules. Built-in is a sixteen-channel MIDI interface.
The keyboard features twenty-five keys with synthesizer-like action, along with eight assignable knobs and buttons. Other features include the standard pitch and modulation wheels, an assignable volume slider, octave +/- buttons and sustain pedal input. The keyboard is powered from the USB bus using an included cable and requires no additional drivers, providing true "Plug and Play" functionality.