Noctua NF-A14x25 G2 PWM Sx2-PP, High-Performance Quiet Fans 2x140mm
- Dedicated dual fan set with two NF-A14x25 G2 PWM 140x25mm fans that are slightly off-set in speed (+/- ~25rpm) in order to avoid undesired acoustic interaction phenomena
- State-of-the-art engineering (Progressive-Bend impeller with winglets and Centrifugal Turbulator, Flow Acceleration Channels, AAO frame) and construction (Sterrox LCP, ultra-tight tip clearance)
- Ideal choice for push-pull applications as well as situations where two fans are operating side by side (280mm water cooling radiators, case intake or exhaust fans, etc.)
- Includes anti-vibration mounts, anti-vibration gaskets for tighter seal on radiators, fan screws, Low-Noise Adaptors (LNA), extension cables and y-cable for running two fans on the same header
- Trusted Noctua quality with premium-grade SSO2 bearing (MTTF > 150,000 h), safety certifications from UL and TÜV, protected against reverse polarity, over voltage and over current (short-circuits)
Estimated shipping
Select a product to estimate shipping.The NF-A14x25 G2 PWM Sx2-PP is a set of two NF-A14x25 G2 PWM square-frame 140mm fans that are offset in speed, which can be beneficial in push-pull operation as well as in situations where two fans are operating side by side, such as in case cooling applications or on 280mm water cooling radiators. When two fans are running at almost the same, constant speed in a push-pull configuration or, albeit to a lesser extent, side by side, 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-A14x25 G2 PWM fans contained in the Sx2-PP set are slightly offset in speed (+/- ~25rpm) in order to avoid such phenomena. This fine-tuning is made possible by the fans’ novel etaPERF motor and its NE-FD6 driver IC that achieves extremely precise speed control and, thanks to its SupraTorque feature, can leverage extra torque headroom to keep the exact desired speed even when working against significant flow resistance such as on water cooling radiators and heatsinks. With one fan running ~25rpm slower (PPA) and one ~25rpm faster (PPB), the overall cooling performance can be kept the same while efficiently preventing intermittent vibrations or periodic humming. Since the perception of beat frequencies can vary depending on psychoacoustic preferences, users can easily further optimise acoustics by slowing the PPA fan down a little more through PWM control or the supplied Low-Noise-Adaptor, which will result in an even smoother sound signature due to the increased offset.
Especificacions
| Main Specification | |
|---|---|
| Fabricant | NoctauaCity name (optional, probably does not need a translation) |
| Comptador d' unitats | Compte 2. 0 |
| Dimensions de l' element L x W x H | 14L x 14W x 2.5H Centimeters |
| Nivell de soroll | 24.8 Decibels |
| Tipus de connector d' energia | 4Pin |
| Mètode de refrigeració | Air |
| Marca | NoctauaCity name (optional, probably does not need a translation) |
| Nombre d' elements | 2 |
| Dimensions del producte | 14L x 14W x 2.5H Centimeters |
| Voltage | 12 Volts |
| Dispositius compatibles | Escriptori |
| Pes de l' element | 0, 68 Kilograms |
| Technical Details | |
|---|---|
| Número de " part " | NF-A14x25 G2 PWM Sx2-PP |
| Tipus de material | Sterrox LCP |
| País de l' origen | EUA |
| Item details | |
|---|---|
| Número de model | NF-A14x25 G2 PWM Sx2-PP |
| Altres | |
|---|---|
| Ressaltat de l' element | High Airflow & Static Pressure, Low-Noise 25mm Thick Fans, Speed-Offset Dual Kit, for Coolers/Radiators/Cases, 1500rpm 4-Pin |
| Tipus de producte | " Cases " |
| Velocitat màxima del gir | 1500 RPM |
| Etiquetes | |
|---|---|
| Etiquetes | |