Disclaimer: I have almost zero experience with firewire. Years ago I picked up an Alesis IO14 and a firewire pci card for my then recording PC. Could never get it to work without crashing and a short time later I switched to a Tascam 1641. Now I'm using a 2012 Mac mini and I'd like to try the Alesis. I've bought what looked like the cable I need(6 pin to 4 pin) but it doesn't fit the Mac. Looks like the mating end but no go. Any specific name of this mystery firewire connector? Where can I get one?