USB & 5-pin MIDI
USB-C on the controller is used for USB-MIDI and to power the board.

MAINFRAME-B+ USB connection.

USB power connection.
The controller requires USB-A on the host side. USB-C to USB-C is not supported in this version.

USB cable.
5pin MIDI (B+ only)

MAINFRAME-B+ MIDI input.

3.5mm TRS to 5-pin MIDI dongle.
Required for B+ to connect a 5-pin MIDI cable. The dongle type is Type A.
For connection process, see Connect Hardware.