Noctua
Noctua NF-A8 ULN, Ultra Quiet Silent Fan, 3-Pin (80mm, Brown)
Bottom line: The Noctua NF-A8 ULN ($17.95 on Amazon as of 2026-10-21 10:27 UTC): Max 10.4 dB(A) rating - among the quietest 80mm fans you can buy; main trade-off: 3-pin only - no PWM, so motherboard speed curves cannot control it.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Max 10.4 dB(A) rating - among the quietest 80mm fans you can buy
- ✓ Bundled Ultra-Low-Noise Adaptor drops speed from 1400 to 1100 RPM
- ✓ Over 150,000 h MTTF rating for long-running NAS and HTPC duty
- ✓ Ships with anti-vibration mounts, extension cable, and 3:4-pin PSU adaptor
Cons
- ✗ 3-pin only - no PWM, so motherboard speed curves cannot control it
- ✗ 1400 RPM ceiling limits airflow versus higher-RPM 80mm fans
- ✗ Brown-and-beige color scheme clashes with most modern builds
- ✗ 25mm thickness will not fit slim 80x15mm or 80x10mm mounting spots
Manufacturer description
The Noctua NF-A8 ULN is an 80mm case fan built for builds where noise matters more than raw airflow. Rated at a maximum of 10.4 dB(A), it spins at 1400 RPM out of the box and drops to 1100 RPM with the bundled Ultra-Low-Noise Adaptor, so you can tune it to the quietest setting your chassis allows. Noctua's A-series frame brings Flow Acceleration Channels and Advanced Acoustic Optimisation, both aimed at cutting the turbulence noise that makes small fans whine. The 80x80x25 mm format fits where 120mm fans cannot: HTPC chassis, ITX and small-form-factor cases, vintage AT and mini-tower builds…
SpecPicks Verdict
SpecPicks scored Noctua NF-A8 ULN using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. Noctua's retro cpu coolers & fans 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 retro cpu coolers & fans 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
How loud is the Noctua NF-A8 ULN?
Noctua rates it at a maximum of 10.4 dB(A) at its full 1400 RPM. Using the included Ultra-Low-Noise Adaptor drops it to 1100 RPM, which is quieter still.
Is the NF-A8 ULN PWM controlled?
No. This is the 3-pin ULN version, which uses a 3-pin Molex connector and runs at a fixed 1400 RPM (or 1100 RPM with the supplied adaptor). It does not support 4-pin PWM speed curves.
What size case does this fan fit?
It is a standard 80x80x25 mm fan, so it fits any 80mm intake or exhaust mount with at least 25mm of clearance. Noctua targets HTPC, ITX, and small-form-factor chassis, plus NAS and similar devices.
What comes in the box?
The fan ships with anti-vibration mounts, fan screws, the Ultra-Low-Noise Adaptor, an extension cable, and a 3:4-pin adaptor that lets you power the fan directly from the PSU.
Can I use this to replace a loud NAS or old PC fan?
Yes - Noctua lists NAS units and other devices as intended replacements, and the 3:4-pin adaptor lets you run it off the power supply if there is no 3-pin header. Confirm your enclosure has 80x25mm clearance first.
Key Features
- Ultra low noise fan, 80x80x25 mm, 12V, 3-pin Molex, 1400/1100 RPM, max. 10.4 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 ULN version with 1400rpm (1100rpm with supplied Ultra-Low-Noise Adaptor) for serious silent enthusiasts who demand the utmost quietness of operation
- Includes anti-vibration mounts, fan screws, Ultra-Low-Noise Adaptor, extension cable and 3:4-pin adaptor for powering the fan directly from the power supply
Full Specifications
| Brand | Noctua |
|---|---|
| Model | FBA_NF-A8 ULN |
| Voltage | 12 Volts |
| Material | Fibre-glass reinforced PBT |
| Dimensions | 80x80x25 mm |
| Unit Count | 1.0 Count |
| Noise Level | 10.4 Decibels |
| Part Number | FBA_NF-A8 ULN |
| Compatibility | PC |
| Material Type | Fibre-glass reinforced PBT |
| Cooling Method | Air |
| Number of Items | 1 |
| Vibration/Rumble | Yes |
| Air Flow Capacity | 34.8 Cubic Meters Per Hour |
| Compatible Devices | Desktop |
| Power Connector Type | 3-Pin |
| Warranty Description | 6 year manufacturer’s warranty |
| Maximum Rotational Speed | 1400 RPM |
| Item Dimensions L x W x H | 0.98"L x 3.15"W x 3.15"H |
| Global Trade Identification Number | 04716123315490 |
Ready to buy?
Noctua NF-A8 ULN, Ultra Quiet Silent Fan, 3-Pin (80mm, Brown) 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 2026-10-21. Price and availability subject to change.
Related Retro CPU Coolers & Fans
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best 1440p Gaming GPUs in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- How to Build a Windows 98 Retro PC in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
More reviews from the SpecPicks archive
Browse all reviews →- Best Plug-and-Play Retro Gaming Consoles in 2026: 5 Picks
- Real Productivity on 32-64GB RAM for Local LLMs
- Top 20 Most Played Steam Deck Games: April 2026
- Ryzen 7 9800X3D vs 7800X3D: The Real-Game FPS Gap at 1080p, 1440p, and 4K
- Stable Diffusion vs Flux — which open image model wins in 2026?
- Linux vs Windows 11: AMD Ryzen 9 9950X3D Performance
- N100 Mini PC vs Raspberry Pi 4 for Home Assistant in 2026
- Orange Pi 5 Plus vs Raspberry Pi 5: The Honest Head-to-Head (2026)
- Open-Source NVIDIA NVK Vulkan Driver Now Supports DLSS
- Solar-Powered Bird Identifier: Raspberry Pi Zero 2W + AI Camera
- Razer Soma Chroma Gaming Chair Review: RGB vs. Adjustability
- Build a Privacy-First Ring Alternative on a Raspberry Pi 4 in 2026
- Best Single-Board Computer for a 2026 Home Lab
- AVX-512 Software RAID on AMD Ryzen: Up to 41% Faster Linux md-RAID
- ComfyUI for local image generation — the 2026 setup guide
- CompactFlash as a Boot Disk: A Silent, Reliable Drive for Your Win98 Retro Rig
- Building a Sim Racing Cockpit Under $500: Logitech G29 + Thrustmaster TH8A Shifter
- Intel llm-scaler-vllm 1.4: Arc Pro B70 Inference Support Lands
- Best Budget AM4 Gaming PC Parts in 2026
- Benchmarking Open Models for Agentic Tool Use on an RTX 3060
- IPEX-LLM + Ollama in Docker on Intel Arc: The 2026 Setup Guide
- Anthropic Launches Claude Science for Researchers
- ASUS TUF 27" 1440p vs Samsung Odyssey G5 32": Best High-Refresh Esports Monitor
- Best Local LLM Parts to Buy Before the 2026 Memory Spike
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090