2x140mm Noctua NF-A14x25R-G2-PWM-SX2-PP Push-Pull Case Fan Set
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About this product
- Brand
- Noctua
- Store
- Computer Alliance
- Category
- Electronics > Electronics Accessories > Computer Components > Computer System Cooling Parts > Computer Case Fans
- SKU
- 42135
Specifications
- Colour
- Brown
The NF-A14x25r G2 PWM Sx2-PP is a set of two NF-A14x25r G2 PWM round-frame 140mm fans for push-pull operation on heatsinks such as the NH-D15(S) or NH-U14S. When two fans operate in a push-pull configuration running at almost the same, constant speed, their acoustic interaction can lead to undesirable harmonic phenomena such as intermittent vibrations or periodic humming due to interference, which can be heard as beat frequencies.
Therefore, the two NF-A14x25r G2 PWM fans contained in the Sx2-PP set are slightly offset in speed (+/- ~25rpm) in order to avoid such phenomena.