# Noctua NF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown)

- Category: Case Cooler
- Brand: Noctua
- Model: NF-A4x10
- Part number: NF-A4x10 FLX
- Price (US): $15.95
- Price last checked: 2026-08-06
- Rating: 4.8/5 from 3714 Amazon reviews
- Warranty: 6 years
- Product page: https://buildmypc.net/component-details/case-cooler/noctua-nf-a4x10-nf-a4x10-flx/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Noctua |
| Model | NF-A4x10 |
| FAN RPM | 3700 to 4500 RPM |
| Noise Level | 12.9 to 17.89 dBA |
| Airflow | 3.88 to 4.83 CFM |

## Key Features

- Premium quiet fan, 40x40x10 mm, 12V, 3-pin Molex, 4500/3700 RPM, max. 17.9 dB(A), >150,000 h MTTF
- Award-winning 40x10mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
- Ideal replacement for noisy or broken 12V 4cm fans in 3D printers, DVRs, NAS, switches, routers, other network and storage devices, etc.
- 3-pin 12V FLX version can be run 4500 or 3700 rpm using the supplied Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
- Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers

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