M-Audio MIDISPORT 2x4 driver. M-Audio USB Drivers. MIDISportsit (Mac OS ,Mac OS 9.x USB Midi Family Support for Mac OS ,Mac OS 9.x) This. Images M-Audio Midisport 2x4 - Audiofanzine. +. M-Audio Midisport 2x4. Midisport 2x4, MIDI Interface from M-Audio in the Midisport series. Write a user review. M-Audio on Monday upgraded all its non-PCI interfaces and controllers with 1x1, MIDISPORT 4x4, MIDISPORT 2x4 and MIDISPORT 8x8/s.