“Roland MKS-30 Planet S Rackmount synth module Rack synthesizer Jupiter / Juno sounds
The MKS-30 Planet-S is an analog polysynth with two DCOs per voice, and 6-voice polyphony – similar to a JX-3P in a two-space rack. This one is in very clean cosmetic condition and has been tested and in good working condition. Includes original power cord and original M-16C memory cartridge. Great big 80s keyboard sounds!
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“roland mks-30 Planet S Synth and pg200 programmer + cartridge. Condition is Used and FULLY FUNCTIONING at time of shipping. Shipped with FedEx or UPS as two boxes.
“Great bit of kit!.” 
“Sold As-Is. Showing signs of a failing voice chip. Works fine upon start up, but after 10 mins or so of playing – some notes distort. It may be possible to repair. For more info, do a search for 80017A voice chip restoration (same chip used on the Juno 106). Synth is in good working order otherwise. PG-200 and M-16C cartridge are in great condition and work perfectly. ”