Ok, if I am understanding you correctly, i think I have those. The card itself has 4 ports for Displayport adapters. I have 4 adapters for this to DVI. I do not see anything discussing additional equipment. That seems counter intuitive for a four port card labeled as "Quad", but maybe more is required.
My main concern is making sure that this card can actually handle 4 monitors at once with each showing different content. That this card is not just going to mirror two screens onto two more (which I haven't been able to get it to do either). The manual and ordering page are thin on details but it is described as if it can handle 4 separate screens at once. I still have time to send it back if I misunderstood the specs.