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Tom’s Hardware
Tom’s Hardware
Technology
Dallin Grimm

Arctic uses a fan to cool another fan — S12038-4K 120mm fan adds an extra fan in its center to cool its central shaft

ARCTIC
A computer server fan, with unusual additional fan blades in its direct center, where is normally a solid circle.

Arctic has released a new cooling fan archetype for server use, the S12038-4K and -8K. The fan is instantly visually unique thanks to its seven bonus fan blades in its direct center, creating a fan-within-a-fan effect. The fan offers class-leading static pressure, though Arctic seems reticent to advertise its new standout.

The S12038's spec sheet is rather impressive on several fronts. Its advertised power consumption at max load, 3.96W, is 12% lower than the next closest server-grade competitor. It generates an insane 11.45 mmH₂O of static pressure, around 3X-6X greater than Arctic's stable of standard case fans. This high static pressure and airflow level is near the best in class for server hardware. As the name implies, the S12038 can be had in flavors of 4,000 or 8,000 maximum RPM.

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