NOCTUA NF-A14X25 G2 PWM SX2-PP Premium 140X25MM Vifte
Du må logge inn for å handle/se priser.
|
|
NOCTUA NF-A14X25 G2 PWM SX2-PP Premium 140X25MM Vifte
Produktnummer:
NF-A14X25 G2 PWM SX2-PP
-
Bruktområdet
PC-kjølevifte
-
Fan diameter
14cm
|
NF-A14x25 G2 PWM Sx2-PP
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.
Specifications:
Size
Mounting hole spacing
Connector & pin-configuration
Cable length - 20cm + 30cm NA-EC1 extension cable
Bearing
Blade geometry - A-Series with Flow Acceleration Channels
Frame technology - AAO (Advanced Acoustic Optimisation)
Material
Rotational speed (+/- 10%)
Rotational speed with L.N.A. (+/- 10%)
Airflow
Airflow with L.N.A.
Acoustical noise
Acoustical noise with L.N.A.
Static pressure
Static pressure with L.N.A.
Input power (max.)
Max. input current
Operating voltage
MTTF
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
Warranty
Selv om vi gjør vårt beste for å gi relevant informasjon, så er bildene kun for å gi et
generelt inntrykk, og selve varen er ikke nødvendigvis akkurat slik som avbildet. Dersom det er
forskjeller mellom produktoverskrift, beskrivelse og bilde, så er det produktoverskriften som
gjelder (f.eks. PCer kommer ikke nødvendigvis med skjerm selv om bildet viser det). Hvis noe er
uklart, vennligst send epost til kundestøtte før du bestiller. Vi tar forbehold om trykkfeil og endring av priser og spesifikasjoner uten varsel.