just on the cusp of buying a usb controller and the one that is catching my eye is the cncdrive (whose products ive used and are happy with there excellent service) uc300-5lpt.
 The spec. seems as good as any and the price is better than many! But is there a "but" are they any good? has anyone here used one?
regards
  Tony

Hi Tony
I have a  UC-300  controlling 5 axis on my knee mill. X,Y,Z , A for the 4th axis and C for the ATC carousel. It's also controlling 8 outputs and 12  inputs. I also have Uc-100s on two other machines. Had a couple of bumps along the way but you can't beat the service from Balazs at CNC drive.

Derek

Well I can highly recommend a uc300 now Ive bought one, very very simple to set up and Balazs at CNC drive gave fantastic service once more! If your thinking of getting one you will not be disappointed.
 Tony