A USB MIDI Host is a hardware device that enables USB MIDI controllers, such as keyboards or drum pads, to connect and communicate directly with other MIDI-enabled devices without the need for a computer. In typical setups, USB MIDI controllers require a computer to interpret and route MIDI data. However, a USB MIDI Host acts as an intermediary, providing the necessary USB host functionality to process MIDI messages and transmit them to traditional MIDI devices or other USB MIDI equipment. This is particularly useful in live performance environments or studio setups where minimizing computer reliance is desirable for stability, portability, or simplicity. USB MIDI Hosts are valued for their plug-and-play operation and ability to bridge modern USB MIDI controllers with legacy MIDI gear.