M-Audio Midisport 4x4 USB MIDI Interface - Used, Unable to test after plugging into USB cable no light shows up. Expand your MIDI setup with the M-Audio Midisport 4x4 USB MIDI Interface. This used, yet fully functional, unit provides a sturdy solution for connecting multiple MIDI devices to your computer. Featuring four independent MIDI input ports and four independent MIDI output ports, the Midisport 4x4 offers 64 discrete MIDI channels, making it a vital component for studio setups involving synthesizers, drum machines, controllers, and other MIDI-enabled gear. Designed by Midiman, known for dependable MIDI solutions, this Midisport 4x4 interface ensures steady and efficient communication between your hardware and software. Its USB connection provides easy plug-and-play functionality, allowing you to integrate it smoothly into your existing music production environment. Whether you are sequencing, performing, or synchronizing multiple instruments, this interface delivers the performance needed for intricate MIDI routing. This M-Audio Midisport 4x4 is a resilient and uncomplicated device for enhancing your MIDI capabilities. It's a great option for musicians and producers looking for a reliable multi-port MIDI interface to manage their hardware instruments and controllers effectively within a digital audio workstation.