I bought these cables to upload a new map to the Guzzi several years back. Sold the goose before I felt any need to mess with the mapping.
So there are two cables, one connects to a Guzzi (and possibly a Duc) ECM and the other converts to PC. I didn't tear into the package, might be a copy of the diag software in there as well. Found them in the old toolbox, forgot I had them, no need for them now.
I can get you more specifics and pics if you find you might be in need of them.
Let us start the bidding at one Lira...