If you want to connect your USB keyboard to your MIDI gear without a computer, this little box might fit the bill
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The best MIDI USB host is wireless, compact and super smart…
USB Host To MIDI Converter Connectors: 1 x MIDI input / output, USB Dimensions: 110 x 55 x 32 mm 5V Power supply (included) 30 30-Day Money-Back
Kenton Midi USB Host
The Kenton USB Host MIDI interface offers a convenient means of routing MIDI data between both MIDI and USB platforms without the use of a computer.
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