Roland PG-1000 Linear Synthesizer Programmer, the dedicated slider-based programmer for the D-50 and D-550 family. It gives hands-on control of tones, envelopes, LFOs, EQ and chorus rather than menu diving. The case is black with the original panel legends. The blue backlit LCD lights up and shows the Structure No. screen. There is some light dust and a few marks on the case and panel from age and use, with general signs of wear consistent with a vintage unit. Included is the power adapter and the connecting cable shown. I have not listed any other accessories, so please ask if you want more detail. A rare piece for anyone with a D-50 or D-550 who wants proper tactile control.Roland PG-1000 Linear Synthesizer Programmer, the dedicated slider-based programmer for the D-50 and D-550 family. It gives hands-on control of tones, envelopes, LFOs, EQ and chorus rather than menu diving. The case is black with the original panel legends. The blue backlit LCD lights up and shows the Structure No. screen. There is some light dust and a few marks on the case and panel from age and use, with general signs of wear consistent with a vintage unit. Included is the power adapter and the connecting cable shown. I have not listed any other accessories, so please ask if you want more detail. A rare piece for anyone with a D-50 or D-550 who wants proper tactile control.