The host card is also the older PCI(or PCIx) and is currently mounted in one of the chassis slots(assuming so it didn't get lost). I did do a quick search for a card that would(should) allow PCIx cards to connect to a PCIe computer, but could not not find a PCIe card with the same connection, so I'm not sure whether this can be done or not(and sadly, I know almost zilch about these chassis). I am hoping for someone that sees the hardware, knows exactly what it is, and has a need/purpose for it