Review about the modification on the hydrodynamic bearing. When buying, do not confuse with the version on the rolling bearing (Xtra) - it is very noisy. In general - a good case fan for blowing in or blowing through a dust filter. In some cases, you can put on the cooler. Its pros: High static pressure, good focused airflow, low start voltage under voltage control (approximately 2.4V = ~280 rpm), very long life claimed. Cons: A very wide base - because of this, coolers and radiators will be poorly ventilated (there will be a large ventilated area in the center), rather noisy at maximum speed - however, like most "universal" impellers that are not specially sharpened for pressure or flow.
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