Noctua NF-A14x25 G2 PWM Sx2-PP Next-gen 140mm dual fan set

Спецификации на Noctua NF-A14x25 G2 PWM Sx2-PP Next-gen 140mm dual fan set socket: n/a 140 mm (вентилатори комплект)

140mm Noctua NF-A14x25 G2 PWM Sx2-PP brown/beige, 9010018100655, NF-A14x25 G2 PWM Sx2-PP

NF-A14x25 G2 PWM Sx2-PP: Next-gen 140mm dual fan set

• Next-gen 14cm design: For unprecedented quiet cooling performance
• State-of-the-art engineering: Progressive Bend impeller, Sterrox® LCP material & ultra tight tip clearance
• Dual fan set: For push-pull and side-by-side usage

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 beat frequencies, which can be heard as intermittent vibrations or periodic humming due to interference. 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.

Key specifications

• Size (Form factor): 140 x 140 x 25 mm (square)
• Speed range: 0 – 1500 rpm
• Airflow (max.): 155.6 m³/h (91.58 CFM)
• Acoustical noise (max.): 24.8 dB(A)
• Static pressure (max.): 2.56 mm H₂O
• Rated voltage: 12 V
• Connector: 4-pin
• Colour: Brown

Scope of delivery

• NF-A14x25 G2 PWM PPA
• NF-A14x25 G2 PWM PPB
• 2x NA-RC16 Low-Noise Adaptor (L.N.A.)
• NA-YC1 4-pin PWM splitter cable
• 2x NA-EC1 30cm extension cable
• 8x NA-AV2 anti-vibration mounts
• 2x NA-AVG2-LR anti-vibration gasket for water cooling radiators
• 8x NA-AVP1-LR load-relief anti-vibration pads
• Fan screws

Гаранционен срок: 24 месеца
* Ако производителя дава по-голям гаранционен срок, гаранцията се поема от производителя, след изтичането на гаранцията дадена от София Компютърс.