Something that was VERY expensive back in the day!
Googling the I-Cude chip numbers I found this on eBay that appears to match:
"Avid Blue Ice Video Card V2 card" ....
I would imagine there is some kind of breakout board that connected to the external DB-xx port.
Not sure if there is anyway to make use of a card like this now, is the software still available somewhere? is it useless without the external break out box? Hopefully it doesn't require an ADB hardware dongle...