This is a Roland SC-88 Pro Sound Canvas, a General MIDI (GM) based sound module. I have not actually used it to confirm its operation. I do not have an environment to test its operation, so I have only confirmed that it powers on. I have only confirmed that it powers on. Please check the photos for the condition. Due to my lack of specialized knowledge, I cannot assess its condition. This is a used item that has not been maintained, so there is a possibility of malfunction. I am selling it as junk. Would anyone who can use it for parts or repair be interested? As it is a used item, there are noticeable stains and scratches. Please note that I cannot completely clean it. The power cable is damaged and has been repaired with black tape, but it does not affect the operation. Please check the last photo.