I am in the same situation. Did you find the keyspan driver by any chance?
Thank you or any other of your help
I'm looking for the driver software for this great serial card to be used on a Quicksilver G4 mac running OS 9.2.2. Any idea where I can get this? I've tried Tripp Lite, the company that bought Keyspan and they say that this card was made before they acquired the company so they don't have it. I would really like to use this card, which I've just bought without the software. Help!