This is the Roland GI-20 MIDI Guitar interface in excellent condition.  Power supply and GK 13-pin cable included.  This unit facilitates connection of a guitar that has a Roland GK pickup mounted (not included...GK1, GK2, GK2a, GK3) to interface with MIDI sound modules and keyboards. You can play keyboard sounds and effects from your guitar.
No international bids, please (USA only).  Shipping is $19.95 to the lower 48 states only (USA).  Thanks for looking.