Skipper

Yes,  is connected  then 

it is problem of  the programs 

32 minutes ago, Brad Saucier said:

CTK-3400SK is class compliant USB MIDI.  The driver will be installed automatically when the keyboard is connected.  

I've already tried and it does not work. I have two PCs, in one with W10 it does not work and in the other with W8.1 if it works. it may be that some program interferes or the keyboard doesn't work with W10. I have a MIDIUSB TO USB, it’s different of MIDI USB.

Hi , I buy a MIDIUSB  USB , I have a CTK 3400SK  .When I connect the MIDIUSB to the PC it does not detect it. Where can I download USB MIDI DRIVERS (W10) for CTK3400SK?