The Elecom JC-PS101U USB converter enables both digital and analog enabled controllers/arcade sticks to be used on the PLAYSTATION 3 console. After hours of testing, it is noticeable that there are some slight lag issues when being played on Tekken 5: Dark Resurrection.
This should not deter you from purchasing an Elecom converter as they are very good for the most part. Sadly the JC-PS101U model does NOT work with Virtua Fighter 5 or let you play PS2 games on the PLAYSTATION 3.
Links:
SDTEKKEN.COM - TEKKEN News Resource! 
How can I get a pair??? I’m from Puerto Rico any tips please contact me.