I'm pretty sure that's a Lapis external video upgrade. I can't remember the name of the specific product, but if I remember to, I'll check the two boxed, never used ones I have in my closet when I get home... I'm pretty sure that the external video connector looks just like that. However, there were multiple versions with different video connectors.

Hmmm. Lapis something Display. Or Lapis Display Something.

The thing is based on a Xilinx FPGA and Lapis touted that they could update and modify the functionality of the card by issuing a bit of software to put on the computer, which would be consistent with changing the configuration file for the FPGA.

Jeff