The USB MidiKLIK (UMK) 3X3 is a 3 IN 3 OUT midi USB interface allowing very powerful routing features, letting you to use the board as a MIDI merge, splitter or even in a standalone midi router/message transformer.

Works driverless class compliant with Windows XP SP3, Vista 32 and 64 Bit, Windows 7 32 and 64 Bit, Windows 8 32 and 64 Bit, and Mac OS X, Linux ALSA, Akai MPC Live/X/Force, IOS, Android

• USB Powered, no additional power necessary
• 4 USB IN / OUT - 3 MIDI IN / 3 MIDI OUT JACKS
• Configuration with SYSEX and/or user menu from a terminal connected to the USB serial port
• Support of very big SYSEX files transmission
• Hardware reset remotely by Sysex
• Sysex to switch to configuration menu serial mode
• Ability to change the USB device ProductStringName of the device, and also change the USB Vendor and Product Ids . Changes persist after power off.
• STANDALONE Mode : can be used as a standalone MIDI routing box without connecting any host
• Stackable : several interfaces can be used, to get 6x6, 9x9 MIDI ports
• Complex routing rules configurables by sysex or from a user menu
• Routing rules allow you to transform the USB MIDIKLIK into a MIDI MERGE or a MIDI THRU very easily.
• Ability to route any USB IN to any USB OUT/ MIDI OUT (7 targets possible 4 USB, 3 Midi jack per board)
• Midi messages filtering : channel voice, system common, realtime, sysex

Size : 112.02 X 71.3 X 25 MM

The firmware is open source so you can adapt or modify it for you own needs. The project is active.

This product is an unmounted PCB without any components provided.

The Bill Of Material you have to buy to get a fully operational board is the following :

• 6 X 220 Ohms R1,R4,R3,R5,R7,R8 , generic, AXIAL , standard size,
• 3 X 4.7K Ohms R2,R6,R9 , generic, AXIAL, standard size
• 3 X 33 Ohms R10,R12,R16 , generic, AXIAL, standard size
• 3 X 10 Ohms R11,R13,R17 , generic, AXIAL, standard size
• 3 X 1N4148 DIODES D1,D2,D3 , generic diode, AXIAL
• 3X 6N138 OPTO DIP-8 (brand generic U1,U2,U5)
• 6 X DIN 5 PCB Panel Mount Female Connector - Specifications: DS-5-01
• 1 BLUEPILL STM32F103C8T6 (you must flash it with the last bootloader and firmware version).