Noctua NF-A8 FLX, High-Performance Quiet Fan 80mm
Bottom line: The Noctua NF-A8 FLX ($17.95 on Amazon as of 2026-10-20 22:20 UTC): Max 16.1 dB(A) at 2000 RPM - quiet even at full speed; main trade-off: 3-pin design means no motherboard PWM speed curve control.
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*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Max 16.1 dB(A) at 2000 RPM - quiet even at full speed
- ✓ Three speeds (2000/1650/1200 RPM) via bundled Low-Noise Adaptors
- ✓ Rated >150,000 hours MTTF for long-term NAS and 24/7 use
- ✓ Ships with anti-vibration mounts, extension cable and 3:4-pin adaptor
Cons
- ✗ 3-pin design means no motherboard PWM speed curve control
- ✗ 80mm frame moves less air than 120mm or 140mm alternatives
- ✗ Speed changes require physically swapping adaptor cables
- ✗ Beige-and-brown color scheme clashes with most build themes
Manufacturer description
The Noctua NF-A8 FLX is an 80mm case fan built for builders who want airflow without the whine. Its 80x80x25 mm A-series frame pairs Flow Acceleration Channels with Noctua's Advanced Acoustic Optimisation design, holding noise to a maximum of 16.1 dB(A) at full tilt. The 3-pin FLX wiring gives you three speed settings out of the box: 2000 RPM for maximum airflow, or 1650 and 1200 RPM through the bundled Low-Noise and Ultra-Low-Noise Adaptors when near-silent operation matters more than raw CFM. The 8cm format suits compact builds that larger fans cannot reach, including HTPC, Mini-ITX and…
SpecPicks Verdict
SpecPicks scored Noctua NF-A8 FLX using a rating × review-volume × price-fit model applied to published specs and reviews across the PC & gaming hardware category. Noctua's PC & gaming hardware lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for PC & gaming hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will the NF-A8 FLX fit my Mini-ITX or HTPC case?
It uses the standard 80x80x25 mm format, so it fits any chassis with an 80mm fan mount. Noctua specifically positions this fan for compact HTPC, ITX and Small Form Factor cases as either intake or exhaust.
How loud is this fan?
Noctua rates it at a maximum of 16.1 dB(A) at its top 2000 RPM setting. Dropping to 1650 or 1200 RPM with the included Low-Noise or Ultra-Low-Noise Adaptor lowers it further for near-silent operation.
Can I control the speed from my motherboard?
Not with a PWM curve - this is the 3-pin FLX version. You set speed by installing one of the two included Low-Noise Adaptors to select 1650 or 1200 RPM instead of the native 2000 RPM.
Can I use it to replace a loud NAS fan?
Yes. Noctua lists NAS units and other devices as a target use for the 8cm format, and the included 3:4-pin adaptor lets you power the fan directly from a power supply if the device header is incompatible.
What comes in the box?
Anti-vibration mounts, fan screws, a Low-Noise Adaptor, an Ultra-Low-Noise Adaptor, an extension cable and a 3:4-pin adaptor. It runs on 12V through a 3-pin Molex connector.
Key Features
- Premium quiet fan, 80x80x25 mm, 12V, 3-pin Molex, 2000/1650/1200 RPM, max. 16.1 dB(A), >150,000 h MTTF
- Award-winning 80x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
- 8cm format is ideal for compact PC cases (HTPC, ITX, Small Form Factor) and other chassis (intake & exhaust), replacement fan for NAS and other devices, etc.
- 3-pin FLX version provides 2000/1650/1200rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
- Includes anti-vibration mounts, fan screws, Low-Noise & Ultra-Low-Noise Adaptors, extension cable and 3:4-pin adaptor for powering the fan directly from the power supply
Full Specifications
| Brand | Noctua |
|---|---|
| Model | NF-A8 FLX |
| Voltage | 12 volts |
| Material | Fibre-glass reinforced PBT |
| Dimensions | 80x80x25 mm |
| Unit Count | 1 Count |
| Noise Level | 16.1 db |
| Part Number | NF-A8 FLX |
| Compatibility | PC |
| Material Type | Fibre-glass reinforced PBT |
| Cooling Method | Air |
| Number of Items | 1 |
| Number of Packs | 1 |
| Vibration/Rumble | Yes |
| Air Flow Capacity | 50.4 cubic meter per hour |
| Compatible Devices | Desktop |
| Power Connector Type | 3-Pin |
| Warranty Description | 6 year manufacturer’s warranty |
| Maximum Rotational Speed | 2000 rpm |
| Item Dimensions L x W x H | 3.15"L x 3.15"W x 0.98"H |
Ready to buy?
Noctua NF-A8 FLX, High-Performance Quiet Fan 80mm is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
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