“For sale: Roland MKS-50 synth module and PG-300 midi programmer. Items are in great cosmetic shape and all functions have been tested and working. The PG-300 is essential if you want to make any adjustments to the factory-supplied tones and patches.
No manuals, but both operating and service manuals are available on the web.
Note: The foam gaskets on the sliders of the PG-300 are starting to come apart a little, but this has no effect on operation.” Click here to visit listing on eBay