via this auction
"This one is in excellent cosmetic condition and is working 100%. It is ready to be used and needs nothing! It does not have the midi jacks installed as I didn't want to drill any holes into it, but it can be controlled via midi by the USB jack located in the battery compartment. All the data is stored into it's internal Eprom so batteries are no longer needed to maintain it's memory. Please go to the Social Entropy website to see the specs of this upgrade. It will come with the original silver gig-bag and a power supply."
