I explained this in the post above . The cards don't pass the power because they don't GET the power. The PCMCIA bus (or PC card bus, as some call it) was never designed to run external devices drawing so much power. Those PC Card FW adapters drawn current all by themselves, and that's about as much current as the PCMCIA bus was designed to provide. We're talking minimal circuitry here, like a compact modem or wireless network card.Chris Shaeffer said:Yup- the extra 2 pins are just for passing power. Unless your firewire interface is bus powered, you won't need them. A 4-ping to 6-pin FW cable should get you in business.
Be carefull with the PC card FW adapters. I've found a few that DON'T pass power even though they have 6-pin sockets. I'm not sure why that is of if I just have some setting wrong somewhere, but it kinda sucks if you're trying to use bus powered harddrives or iPods.
Take care,
Chris