The XFX 7800 GTX is SLI enabled, which means that if you add a second card, it can work in SLI mode, giving theoretically, twice the performance.
According to XFX, the specific cooling system is twice as quiet and cool as the competition's.
The XFX 7800 GTX offers dual DVI-I connections and an S-Video in/out connection...
There's also a a PCI-E power connector (photo below).
The next page gives details of our testbed system.