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I have a really old computer that I'm turning into a pfsense router. I'd like to add wireless support. The pfsense docs suggested I get a card like this one.

Will this mPCI card work in my old motherboard's regular PCI slots? Or do I require some sort of adapter like this?

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up vote 3 down vote accepted

The card is electrically compatible, but not physically compatible. You must get an adapter.

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