“Roland CMU-802 Hi! You are bidding on a rare CMU-802 in working condition. This unit was designed to work with the Roland DG computer system. It also can interface your Din-sync devices with tape machines. The unit was tested as a master clock with a Tr-808 and worked fine, starting and stopping the unit and varying its tempo. I would assume it would be possible to use an FSK tape signal to do the same. Because the unit is partially tested it is sold as is but garanteed not to be DOA. I can do further testing if you require me to. Because of the possibility of international bidder, no power adapter is included, but I can add one for a small price. This unit works with a Boss type adapter, 9v negative tip.” Link