Do you mean that the jack to plug into an RJ45 cable is on the card itself rather than on the silver cover plate that would show up on the back of the computer? If so, and I've never seen a card like that, then I would suggest that you leave one of the slot openings where a pci silver cover would go empty so you can run your cable through that opening directly to the card. Then take some duct tape and cover as much of that hole as possible to keep the dust/dirt from being sucked into the case.
TONI
I must consolidate my PCI Cards with a combo. I found one that has USB 2, Firewire and Ethernet but the Ethernet connection is internal. How will I access that?

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