PCI slot to USB external enclosure?

Ever heard of such a thing?

[HughMungus]

Let's say you had a PCI card that you wanted to operate outside the computer (e.g., a video capture card). Are there such things as an external "PCI slot" that connects via USB or Firewire?

[bcolflesh]

This place can probably help you:

adexelec.com/pci32.htm

Scroll down to the PCIRX4-FLEX.