Check the listing for details. Keith McMillen QuNeo 3D USB MIDI Controller with USB Cable. Condition: Used. Listed at 215.00 USD. The Keith McMillen QuNeo 3D USB MIDI Controller is a high-quality MIDI interface designed for musicians and producers. With a single mic input and channel, this controller allows for easy setup and use in various audio production environments. The QuNeo model, known for its user-friendly design and advanced features, is a reliable choice for those looking to enhance their musical creations with precise control over MIDI instruments and effects. The included USB cable ensures seamless connectivity to your computer for a smooth workflow.