I have been searching for two days for COM/LPT slot covers for a couple of old Gateway 2000 P4D-66 desktops that I am rebuilding for work. Would anyone be able to point me in the right direction on where to purchase these? I can only seem to find PCI slot covers anywhere. I just need the small metal covers that have like a clip on one end and a screw hole on the other to stop dust and such from getting in there. Thanks!