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Brown 80mm square case fan with nine blades and black frame visible

Noctua

Noctua NF-A8 FLX 80mm 3-Pin Case Fan Brown

SKU CH-QSK9-8VZ5Y

An 80 mm case fan with three speed settings up to 2000 RPM and a maximum noise level of 16.1 dB(A)

  • Fan size80 mm
  • Number of fans1 Fan
  • Fan controlNo Controller
  • Fan depth25 mm
  • Product typeCase Fan
  • Premium quiet cooling with AAO frame and Flow Acceleration Channels
  • Three speed settings 2000 1650 1200 rpm via Low-Noise Adaptors
  • 80mm size fits compact HTPC ITX and Small Form Factor cases
  • Reference SSO2 bearing rated beyond 150000 hours MTTF
  • Full accessory kit includes anti-vibration mounts adaptors extension cable and 3:4-pin adaptor

Compact 80 mm Cooling

The NF-A8 FLX is an 80 mm premium quiet fan built for tight spaces such as HTPC, ITX and small-form-factor builds. It also serves as a replacement fan for NAS units and similar devices where an 80x25 mm footprint is required. The 3-pin design plugs directly into standard motherboard headers or a PSU via the included adaptor.

Three Speed Steps for Airflow or Silence

Supplied Low-Noise and Ultra-Low-Noise Adaptors let you choose 2000, 1650 or 1200 RPM, trading maximum airflow for near-silent operation down to 16.1 dB(A). At the lowest setting the fan still moves useful air while remaining barely audible, while the highest setting delivers strong ventilation for demanding components.

Upgrade from Stock 80 mm Fans

Builders replacing noisy or failing stock 80 mm fans gain smoother running, lower noise and a rated MTTF above 150000 hours. The jump is worthwhile when the original fan is audible at idle or when the system needs finer speed control than a fixed-voltage header provides. It does not suit builds that require PWM control or larger 120 mm mounting points.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 67% of the 8,339 comparable items (median $19.99).
Fan size 80 mm
Lower than about 75% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Product typeCase Fan
Size & build
Fan size80 mm
Number of fans1 Fan
Fan depth25 mm
More details
Fan controlNo Controller

Questions about this item

Will the 80mm NF-A8 FLX fit alongside my existing 120mm case fans?

The NF-A8 FLX uses an 80x80x25 mm frame, so it occupies a smaller mounting grid than 120mm fans. Check your case for dedicated 80mm positions or brackets before mixing sizes.

How do I confirm the fan runs at the rated 16.1 dB(A) after installation?

Use the supplied Low-Noise Adaptor to drop the speed to 1200 RPM; at that setting the manufacturer specifies a maximum of 16.1 dB(A). Listen for smooth, bearing-free operation as a practical check.

Which cables and adaptors come in the box so I don't need extra parts?

The package includes anti-vibration mounts, fan screws, Low-Noise and Ultra-Low-Noise Adaptors, an extension cable and a 3-to-4-pin adaptor for direct PSU power.

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