I have two available, the link is here:

MESA 5i25 / 7i75 CNC controller card Linux


$45 with free shipping for each pair (5i25 + 7i75). The 7i75 is pre-wired to the a DB25 connector, just plug 7i75 into your stepper controller (in my case a Gecko G540), and connect to computer via parallel cable. Configure card (see Mesa Electronics for docs) and you are all set.

These normally cost $130 for the pair and you will still need to wire up the breakout board (7i75).