Although there's no matching shipped product that I know of, that card looks
very rasterops-y. I have a Paintboard Lightning and there some very obvious design similarities.
PCB is the same shade.
Silkscreen font looks the same.
Many of the components are from the same manufacturer.
Some of the passives around the output connector appear to share the same physical layout.
It has the same grid pattern ground plane around the edges of the board.
Most tellingly, the ROM P/N shares the same format - mine is 2685 0002-2613, and looks to be printed the same.
Edit, also on the back of my card, the PCB P/N is of the same format as OP's card. Mine is 0002-0546-XD
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