Noctua

Noctua NF-A9 PWM

Expert rating8 / 10

Fan Size:: 92mm
Bearing Type:: SSO2
Lighting:: No RGB
Airflow:: 46.4 CFM
Static Pressure:: 2.28 mmH2O
Max Speed:: 2000 RPM
Noise Level:: 22.8 dBA
PWM Control:: Yes

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Manufacturer: Noctua Last updated: 2026-09-12

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Noctua NF-A9 PWM Review

Noctua NF-A9 PWM 92mm case fan, 46.4 CFM airflow, 2.28 mmH2O static pressure, 2000 RPM max, 22.8 dBA, SSO2 bearing, No RGB, PWM control. A 92mm fan for small-form-factor cases and cooler-mounting slots where a 120mm doesn't fit.

The NF-A9 PWM shrinks Noctua's A-series design down to 92mm for SFF cases, rear exhaust slots that only fit 92mm, and coolers with 92mm mounts. It keeps the SSO2 bearing, AAO frame, and 6-year warranty of its larger siblings, and its smaller diameter means it naturally builds more static pressure at a given RPM than a 120mm fan would.

Where 92mm Still Matters

Plenty of small-form-factor cases and a handful of low-profile or 92mm-native CPU coolers only accept a 92mm fan, and generic 92mm fans in that space tend to be either loud or flimsy. The NF-A9 PWM fills that gap with Noctua's usual build quality rather than forcing a compromise.

Airflow vs. Pressure Trade-off

At 92mm, the NF-A9 PWM naturally produces higher static pressure per CFM than a 120mm fan spinning at the same RPM, which makes it a reasonable choice for tight, restrictive mounting locations even though its absolute airflow number is modest next to full-size case fans.

Comparison to Alternatives

There's no other 92mm fan in this catalog to compare against directly; against a 120mm option like the Arctic P12 PWM PST, the NF-A9 PWM moves less total air but is the only realistic choice when the physical mounting space simply won't accept a 120mm frame.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8 / 10

The go-to premium option whenever a build genuinely needs a 92mm fan instead of 120mm.

Best for

SFF cases with 92mm-only mounts
Coolers with 92mm fan slots
Rear-exhaust locations too tight for 120mm

Not for

Standard mid-tower intake/exhaust (use a 120mm or 140mm instead)
Buyers chasing maximum total airflow
RGB builds

Specifications

What these specs mean

Identity and packaging

Brand	Noctua
Model	NF-A9 PWM
Fan Thickness	25 mm
Pack Quantity	1

Design

Fan Size	92 mm
Bearing Type	Fluid Dynamic
Lighting	None

Performance

Static Pressure	2.28 mmH2O
Max Speed	2000 RPM
Noise Level	22.8 dBA
PWM Control	Yes

Performance at maximum speed

Airflow	46.44 CFM

Performance at quiet speed

Min Speed	400 RPM
Quiet Speed	1550 RPM
Airflow At Quiet Speed	36.84 CFM
Noise Level At Quiet Speed	16.3 dBA
Zero RPM Capable	Yes

Motor and bearing

Bearing Marketing Name	SSO2
Rated Life	150000 hours
Blade Material	PBT

Airflow direction and frame

Mounting Hole Spacing	82.5 mm
Anti Vibration Pads	Yes

Power and control

Max Power Draw	1.2 W
Start Voltage	7 V

Connection and daisy chain

Connector Type	4-Pin PWM
Lighting Connector	None

Lighting

RGB Lighting	No
Lighting Type	None

Physical and finish

Colorway	Brown And Beige
Cable Length	200 mm
Weight	95 g

Market

Warranty	6 years
Positioning	Premium

FAQs

What are the key specifications of the Noctua NF-A9 PWM (92mm/46.4 CFM/2.28 mmH2O Static Pressure/2000 RPM Max/22.8 dBA/SSO2 Bearing/No RGB/PWM)?

Key specs for the Noctua NF-A9 PWM: Airflow 46.44 CFM, Airflow At Quiet Speed 36.84 CFM, Static Pressure 2.28 mmH2O, Noise Level 22.8 dBA, Noise Level At Quiet Speed 16.3 dBA, Max Speed 2000 RPM.

Will the Noctua NF-A9 PWM (92mm/46.4 CFM/2.28 mmH2O Static Pressure/2000 RPM Max/22.8 dBA/SSO2 Bearing/No RGB/PWM) work with my current setup?

The Noctua NF-A9 PWM (92mm/46.4 CFM/2.28 mmH2O Static Pressure/2000 RPM Max/22.8 dBA/SSO2 Bearing/No RGB/PWM) lists Fan Size is 92 mm. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the Noctua NF-A9 PWM (92mm/46.4 CFM/2.28 mmH2O Static Pressure/2000 RPM Max/22.8 dBA/SSO2 Bearing/No RGB/PWM) best suited to?

Best suited to: SFF cases with 92mm-only mounts; Coolers with 92mm fan slots; Rear-exhaust locations too tight for 120mm.

What are the drawbacks of the Noctua NF-A9 PWM (92mm/46.4 CFM/2.28 mmH2O Static Pressure/2000 RPM Max/22.8 dBA/SSO2 Bearing/No RGB/PWM)?

Not the best fit for: Standard mid-tower intake/exhaust (use a 120mm or 140mm instead); Buyers chasing maximum total airflow; RGB builds.