Can I use Saffire with a 4-pin firewire port?

Many PC laptop firewire cards use a smaller 4 pin firewire connection. The only difference between the two FW ports is that the 6-pin can supply power and the 4-pin can't. If you only have 4-pin then simply connect up the Mains adapter that's provided to power the Saffire. Otherwise, the operation should be the same.