I think I remember (maybe from reading lik-sang?) that these are overstocked (DC?) sticks later factory modified to USB.
> > http://www.rakuten.ne.jp/gold/sls/sp/product/stick_pc.html
> This looks very much like the Dreamcast's arcade stick. I don't think that it
> was a very decend or authentic arcade controller. Like the Naomi cabinets it
> seems kind of cheap. The light gray plastic frame, the weak control stick, the
> wobbly buttons. The metal plate at the bottom was the only part of the DC board
> that gave it a half way decend appeal of durability.
> I personally prefer the Saturn's arcade controller above all else. And that's
> just because it fitted the console so well. It wasn't trying to imitate the much
> more costly arcade original components but was rather designed with the console
> in mind.
> The DC board was just trying to look authentic but failed miserably once you
> actually held the thing in your hands.