No you cant, if you look at the top of the card there is no SLI connector, also i guess you are unlikely to have enough space of any motherboard to run 2 cards and keep them cool.
That card is just ridiculous, the dual 6800GTs were just about borderline, but that is just insane. (and the 6800GTs i think you can run in SLI on a gigabyte board)
G