I'm sorry if this sounds like a bumb question, but do you mean to connect the USB port on the kn6000 to the 9pin D connector on the laptop, or to get a new MIDI cable with midi in and out at one end and a 9 pin D connector at the other end? My current cable has MIDI in and out at one end and a 15 pin D connector at the other end.
Again, thanks for your reply and sorry for not understanding the set up.