I'm on an iMac but would like to make use of a PCI card via a Thunderbolt chassis. The card is Mac compatible, but I've read conflicting reports on whether a mac compatible card can be used in this way. Drivers might not be Thunderbolt compatible. Seems odd, as if not what's the point of selling a chassis? I've read a bit more, seems I've missed an important bit of relevant info, it's a video card I want to use the GPU on.