Back when I was using q Q610, I wanted a DOS card. Real Quadra DOS cards were somewhat unobtainium, but 6100 cards were very common. IIRC, I picked up a 6100 DOS card from ebay and a 610 right angle adapter (for the PPC upgrade) from LEM Swap. All I had to do was move the DOS card to the other adapter.
Basically, the Q610 pds adapter is the other one in the picture.
Basically, the Q610 pds adapter is the other one in the picture.