Can I use my device with a 4-pin FireWire connection?
Yes! There is no actual performance difference between a 4-pin and a 6-pin
FireWire connection, however to use DuaFire,
or QuataFire XL
with a 4-pin FireWire connector on your computer, the interface will not get
powered from your computer as a 4-pin FireWire connector does not have the required
pins for power supply. This means that you need to use the external power supply
for your FireWire audio interface then.