Welcome to Musicdungeon, you are looking at a great piece. This is the 1980's Korg Japan DSM-1 Digital Sampling Synthesizer. The DSM-1 is very similar to the DSS synth, and both are still very relevant today. This DSM-1 features 16 voice polyphony, 4 timbres, dual oscillators, 12 bit/64 seconds sampling, and Attack/Sustain/Decay/Release envelope. This came to us, and was tested with the Bass Roto disk. The disk loads with an error, but does load which allowed us to test this DSM-1- it works as it should. Very good overall condition- typical marks you expect on a rackmount unit of this age. Includes the power cable. This is your chance to get your hands on a great rackmount synth from Korg Japan, for the price you want. Buy with confidence. Don't pass this by!