Compatibility:MMEMac OS X Core MIDIWindows 98SE / Me / 2000 (SP4) / XP (SP1)OS 9.2.2 with OMS 2.3.8 (included)OS X 10.1.5 or greater* native USB port required; G3/G4 accelerator cards not supportedM-Audio Keystation 61es USB MIDI Controller Features: 61-note USB keyboardVelocity-sensitive, semi-weighted keysPitch bend wheelModulation wheelsVolume/control sliderAdvanced-function button for programming sustain footpedal inputUSB or optional 9V adapter poweredMac OS X and Windows XP compliantอ่านเพิ่มเติม