The TRACKLINK MIDI to USB Interface makes it easy to connect your keyboard, drum machine, or other MIDI device directly to your computer. Simply plug the MIDI connectors into your device and the USB connector into your computer and play you'll be tracking in no time! Keyboard controllers Synthesizers, samplers, and drum machines Software sequencers and editors Notation software Use your existing software to record and edit your performance data. If you use multiple MIDI devices, simply assign each device its own MIDI channel using your software. The TRACKLINK MIDI to USB Interface supports up to 16 MIDI channels with no software driver required. Its that easy! NOTE: The earlier version of the USM-422 (pre 2009, light blue color) requires drivers for installation.