Kenton Midi USB Host

I connected the micro-usb connection of the Roland GO Piano to this little box, and this onlocked a lot of new features.
Using the MIDI Out at this box the Go Piano can be used as a master keyboard to control other instruments.
When connecting a MIDI Controller (like the Roland A49) to the
MIDI In at this box, you can activate the hidden GM2-bank in the Go Piano, which gives you 128 additional sounds (!) to select through MIDI Program Change commands and then can be played on the piano keyboard.
By sending MIDI Control Change commands (like Resonance, Cutoff-filter, Modulation, etc.) it's possible to alter the sounds of the Go Piano, which leads to whole new sounds!

I have a 25keys midi keyboard,which have usb port only.I also have an arranger module "Roland BK7m".Only midi port in bk7m transport midi signal.There is no way to connect these two devices without computer arrangement software routing.I seek it in Thomann,which meets me demant.
It have an LED in USB port,which can indicate the status of USB midi connection,which are very useful.When you set correct midi channel,you can use your midi keyboard to trigger the module connected to the midi port.
The built-quality is good.It can also be powered by powerbank,which are very practical on the road.