rangerbob21, have you measured power consumption at 580 GH/s?

At the moment this miner doesn't look particularly good. You could get 4 S1s for 0.44BTC each (4*0.44*450 = $792), undervolt them to 1.2 W/GHps, and get the same performance as this board (560-580 GHps), but save $50 + cost of cooling system (~$100).