The DigitalLife UMH-10 is a standard MIDI USB Host Box. It functions as transferring USB-Interfaced MIDI Instruments / Keyboards to a 5-PIN standard MIDI Devices. And then enable users to connect their MIDI Device's w/ other 5-pin MIDI Controller / Merger / Thru etc. So the DigitalLife UMH-10 is a bridge to a modem USB-MIDI device to traditional 5-PIN MIDI devices.