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We do publish a firmware version without the keyboard interface for users who want to connect to such MIDI interfaces. In this version, the Keystrokes feature is disabled, and your computer will only detect a MIDI controller being plugged in, not a MIDI + Keyboard controller.
More information here: https://iconnectivity.supportbee.io/53-iconnectivity-knowledgebase/534-midi/837-is-my-midi-device-compatible-with-the-iconnectivity-usb-midi-host-port