Be aware: Kenton claim that their MIDI Host will allow a USB device to be plugged into the USB MIDI Host mkII instead of into a computer. They claim that; "It provides MIDI In & Out sockets for USB MIDI keyboards and controllers which have only a USB B type socket. For example, used with a USB-Solo, it allows the USB-Solo to be used in a standard MIDI setup, just like a Pro-Solo. It has a USB Host port (USB A type socket), a MIDI In and a MIDI Out (both 5 pin DIN).\nMIDI data received at the MIDI In socket will be sent to the USB device. MIDI data received from the USB device will be sent to the MIDI Out socket."\nI have wasted money on this device only to find it will not communicate MIDI signals to my Yamaha, PSR S-670 keyboard.\nTech Support was appalling, telling me that I did not understand the problem. Perhaps that was why I contacted them?