This fan looks promising

COOLING POWER
It reduces 75% of traditional motor hub area. This revolutionary breakthrough not only increases 30% of airflow and static pressure, but also brings air stream directly to the centralized heat source. As a result, T.M.D. FAN improves the efficiency of heat dissipation at least 15%.

POWER CONSUMPTION / TORQUE
Locating motor at 4 corners substantially expands the room for winding. Thus, lower power consumption can be easily attained. At the same time, the torque of motor becomes even much more powerful than ever.

ACOUSTIC NOISE / BALANCE
As known, the tips of fan blades are the main source of noise when a fan is rotating. The magnet of T.M.D. FAN surrounds along the tips of fan blades. This "tip-magnetic" design eliminates the major noise source of an impeller and provides the suspended balancing force when impeller is rotating.


Features:

Quieter than traditional axial fans for the same amount of airflow
Tip-Magnetic driving fan
75% smaller than traditional motor hub area.
30% increase in airflow and static pressure
At least 15% more efficient than traditional fans

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