Beautiful but blah ... 1

Unlike the photo which is that of 120mm with 9 blades, 80 and 90mm of this series have only 7 blades.
They are pretty and quiet but do not blow much.
They can be used to ventilate a box but nothing else (cool a CPU for example).
Design, with a central magnet that holds the rotor in contact with the stator, has a major drawback: it prevents the use of the suction behind a gate planar sheet steel fan (front shell for example) because the rotor will stick to the grid.
The wire is relatively long (50cm) ...