Yeah, that's a trumpcard controller. I had one of those for a while. Nice piece of kit. Gives you two Zorro II slots. They ARE actual Zorro II slots. Never tried a graphics card, though, 'cos I never had one, at the time. It's a bit of a power hog, though, so don't expect to use it with the original A500 brick. I had a bigfoot at the time, that I gave a guy for the cost of shipping...... only he never paid for the shipping, cheap @$$hole!
