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I'm trying to add firewire capabilities to my laptop. I have an ExpressCard 54 slot, but I am having trouble finding a Firewire card for that. I have found several PCMCIA cards, though. They look similar in size, so I wasn't sure if they were interchangeable.

If they aren't, what can you recommend as an alternative?

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up vote 1 down vote accepted

There are express card that adds firewire. You can see one there for exemple : http://www.sonnettech.com/product/fwusbexpresscard34.html

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Perfect. Thanks! – Robert Oswald Aug 23 '09 at 21:52

They are not interchangeable. It is like comparing ISA to PCI cards. While they do have same purpose, connectors are not same.

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Yeah, I feared that might be the case. Thank you. – Robert Oswald Aug 23 '09 at 21:55
    
Worse. to PCIe. (PCMCIA to ISA, Cardbus to PCI, ExpressCard 54 to a single PCI-e lane). – Hennes Apr 22 '13 at 21:43

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