The unique feature of this stick is not only that it is fully compatible with Sony's PS One, PS2 and Sega's Dreamcast, but also that it was designed to do so without using a converter.  There is a dedicated cable for each system port, hence guaranteeing instaneous response time.  Even though some converters out there promise little or no lag, in reality, even the slightest lag is noticeable on fighting games that demand instant response. 

 

You don't have to worry about that here.  Direct custom soldering for both systems to each individual button.