MI/ODI/O provides one coaxial input / output, one optical digital input and 16 channels MIDI input / output. The MI/ODI/O is designed to be used with MAYA44, Waveterminal 192L, Waveterminal 192X or Waveterminal 192M as an add-on. It's easy to install and does not require any additional power supply or drivers to install. No new IRQs or other resources are used. MI/ODI/O lets you get more from your existing audio interface by adding S/PDIF I/O and MIDI I/O. Just hook it up and you're ready to go!