The Keystation 49e is the perfect USB MIDI controller keyboard for getting started with your music. Class-compliancy with OS X mean true plug-and-play operationand the included Maximum Audio Tools software bundle is designed to get you playing immediately. The Keystation 49e includes a 49-note full-size, velocity-sensitive keyboard for authentic playing experience, as well as built-in MIDI interface, pitch and modulation wheels, and sustain pedal input. This sleek, compact keyboard is USB bus-powered, requiring no external power supply.