and that's able to dissipate 125 watts at full tilt.
at this moment its drawing 160 watts.
160 - 125 = 35 Watts to much.
160w is wall current, with an overloaded power brick and severely overloaded vcore regulators. Certainly a far cry from their 30w target for a device running at 30gh/s but a board respin with properly sized vcore regulators will improve efficiency and a better power brick would increase efficiency as well.
Their heatsink is probably capable of 120w tdp as others have said since it appears similar to amd's heat pipe sink for their hotter chips. It won't be quiet though.