Keith McMillen MIDI Expander

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Send MIDI straight to your Instruments over USB without a computer

Keith McMillen MIDI Expander
Keith McMillen MIDI Expander Keith McMillen MIDI Expander Keith McMillen MIDI Expander
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The KMI MIDI Expander enables you to use KMI gear such as SoftStep, 12 Step and QuNeo to control your MIDI hardware devices with 5-pin MIDI DIN connectors.

Plug in your MIDI devices to the KMI MIDI Expander and you're ready to send and receive MIDI data with or without a computer.



  • The ideal way to connect your KMI control surface to your MIDI-based hardware synths and effects
  • Simple, rugged, and easy-to-use converter between class-compliant MIDI over USB to conventional 5-pin MIDI I/O
  • True plug-and-play operation - hook it up and you're ready to go
  • Completely bus powered operation means no need for extra cables and bulky power supplies
  • No computer required for operation
  • LED indicators let you easily check power connectivity as well as MIDI in and out activity
  • Confirmed compatibility with SoftStep, 12 Step, QuNeo, and other KMI controllers
  • Dimensions: 4" x 1.25" x 1.25"
  • Weight: 2.5 oz.