... Mac OSX,drive free and hot plug supporting4.Interface MIDI interface,USB interface, pedal interface(for a switching or continuous pedal controller ) ... 5.Power 9-12V power interface,Power on/off 6.Sofetware Compatible with major sequencer ... /status. 2.the rear NO.FUNCTION1MIDI OUT, MIDI output interface.2USB, USB interface. 3PEDAL, Assignable pedal inter face 4DC12V, 12V ...