The Adaptec Firewire controller has been out of production for many years, the OHCI compliant drivers for these controllers are embedded in both Windows and MAC OS (and Linux), so no further drivers are available to download. There was originally a driver disk that included the generic Firewire redistributable drivers from Apple and Microsoft, but this disk is not needed as long as you have an OS installation of any modern version of Mac or Windows. If the card is not seen on your Mac, verify the Apple FireWire extensions are loaded and enabled.
