FS: 15 pin famicom mouse

[doctorlai]

http://www.ebay.co.uk/itm/151247177711?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

[heranbago]

I got this but can't seem to get it to work with Famicom Windows 2000 or Education Computer 26-in-1. Oh well.

edit: so it seems to be a mouse from this famiclone
http://helloacm.com/introduction-to-8-bit-famicom-clone-subor-sb2000/
The rom for it exists but blue screens (lol) on a real famicom

edit 2: On Windows 2000 it actually does have an effect. It appears to make the cursor drift downwards very slowly. There are people who have reported controlling games with this kind of mouse but I haven't had it respond to my movements yet.
http://forums.nesdev.com/viewtopic.php?t=6079&start=15

edit3! The seller responded that it's for the BBGDOS famiclone computer. Seen here:
http://helloacm.com/the-8-bit-dos-by-famicom-clone-bbgdos-in-the-1990s/
The logo matches up with some of the images on the page so that's it alright.