My new mac has no FireWire input, hence I now cannot use my Edirol FA66
Check the apple store for the Thunderbolt to Firewire 800 adapter. That should take care of your issue.
FireWire 400 6 pin on my interface or a 4 pin, just ordered a 4 pin to USB. I hope this will solve the problem.
I don't need it to be bus powered as I have power supply
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