YAMAHA MU2000 Tone Generator Sound Module Rare!

This is a Yamaha MU2000. I powered it on, and it was recognized by the sequencer with no operational issues (please note that not all functions have been tested). As it is an older item, there are scratches, dullness, etc. I will disinfect it with alcohol before packing. The photos show everything included. I had multiple optional sound source cards, but unfortunately, they are lost. There is no instruction manual, but it can be downloaded from the Yamaha website.
It will be shipped from Tokyo, so please refrain from purchasing if you are in a hurry, as it may take some time to arrive.
*I played it for the first time in a while, and it has a great sound that doesn't feel dated.