Hmm-the card seems good.Has lots of memory,but the core-clock and memory clock speed don't really seem that good.As I have said in another thread reffering to this card,the FX5700 ULTRA has those speeds ,but has much less memory.
How much does that cost?I'm just curious.
About that connection-I've made a picture of my computer's "bowels" .You can see my 6600GT which also needs one of those "dongles" .
The image is low-quality because it was taken with my phone,but I think you can understand
That card probably has the same thing.
If you buy it ,make sure the wires are set correctly.When I got my GT,some moron wired it incorrectly and about a week I thought it was broken.I had to re-wire my computer myself and then it finally worked...