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Item #:
220322065
Noctua NF-A4x20 PWM, High-Performance Quiet Fan 40mm
90% of respondents would recommend this to a friend
Item #:
220322065
XCD 68
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Premium quiet fan ideal for use in 1U servers or replacing fans in network and storage equipment with maximum speed of 5000 RPM and less than 15 dB(A) noise.
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What Stands Out
Ultra-Quiet Operation
The Noctua NF-A4X20 PWM operates at remarkably low noise levels, ensuring quiet performance for sensitive applications, making it ideal for home offices or audio recording environments.
Compact Size
With its 40x20mm dimensions, this fan is designed to fit in tight spaces, catering to users looking for efficient cooling solutions in compact builds or small electronic devices.
PWM Control
Featuring a 4-pin PWM connector, this fan adjusts its speed automatically based on temperature, providing efficient cooling when needed while minimizing noise during low load conditions.
Product Details
- Premium quiet fan for server with 40x40x20 mm size and 12V
- Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame
- Ideal for 1U servers, network and storage equipment, DVRs, etc.
- 4-pin PWM version for automatic speed control via 4-pin PWM fan headers
- Includes anti-vibration mounts, fan screws, extension cable, y-cable and OmniJoin adaptor set
- Internationally renowned for superb quietness, exceptional performance, and quality
| Power Connector Type | 4-Pin |
| Voltage | 12 volts |
| Cooling Method | Air |
| Compatible Devices | Desktop |
| Noise Level | 14.9 db |
| Maximum Rotational Speed | 5000 rpm |
| Air Flow Capacity | 9.4 cubic meter per hour |
| Item Dimensions L x W x H | 1.57"L x 1.57"W x 0.79"H (4 x 4 x 2 cm) |
| Material Type | Fibre-glass reinforced PBT |
| Brand Name | Noctua |
| UPC | 841500110109 |
| Number of Packs | 1 |
| Manufacturer | Noctua |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Model | NF-A4x20 PWM |
| Part Number | NF-A4x20 PWM |
| Product Dimensions (L x W x H) | 1.57"L x 1.57"W x 0.79"H (4 x 4 x 2 cm) |
| Brand | Noctua |
| Material | Fibre-glass reinforced PBT |
Who Should Buy?
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Small Form Factor Builds
Ideal for compact PC builds requiring efficient cooling without taking up much space or adding noise.
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Noise-Sensitive Environments
Perfect for users who need quiet cooling solutions, such as in offices, libraries, or home theaters.
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DIY Enthusiasts
Great for hobbyists and builders looking to customize their cooling solutions with premium quality and reliability.
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High-Performance Gaming
Not suited for systems requiring high airflow and cooling capacity during intensive gaming sessions or overclocking.
Product Description
Noctua NF-A4x20 PWM, High-Performance Quiet Fan 40mm
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are the key features of the Noctua NF-A4x20 PWM fan?
Answer: The Noctua NF-A4x20 PWM fan is designed for superior cooling performance while maintaining low noise levels. Key features include PWM control for dynamic speed adjustment, a compact form factor of 40x20mm, and support for various mounting options. Its advanced aerodynamic design minimizes turbulence, ensuring efficient airflow. This fan is ideal for small form factor builds or as a replacement for existing fans in tight spaces, making it perfect for cooling mini PCs, laptops, or printers. -
Question:
How does the PWM feature work on the Noctua NF-A4x20 fan?
Answer: The PWM (Pulse Width Modulation) feature allows the Noctua NF-A4x20 fan to adjust its speed automatically based on the temperature conditions within your device. By using a 4-pin connector, the fan communicates with your motherboard or fan controller, enabling it to optimize its performance as needed. This results in quieter operation during low-load scenarios while ensuring effective cooling when your system demands it. It's particularly useful in environments where low noise is a priority, such as offices or home theaters. -
Question:
Is the Noctua NF-A4x20 fan suitable for radiators?
Answer: Yes, the Noctua NF-A4x20 PWM fan can be used on radiators, particularly in compact cooling systems where space is limited. Its ability to deliver efficient airflow with minimal noise makes it a favorable choice for enhancing the cooling capacity of radiator setups found in custom water-cooling loops. When correctly mounted, this fan ensures effective heat dissipation while keeping system noise to a minimum, ideal for high-performance builds or overclocking setups. -
Question:
What applications is the Noctua NF-A4x20 fan best suited for?
Answer: The Noctua NF-A4x20 PWM fan is versatile and can be employed in several applications, including compact PCs, NAS devices, and 3D printers. Its small size and quiet operation make it an excellent choice for projects where space is at a premium and noise levels must be kept low. Additionally, its PWM functionality ensures optimal cooling without sacrificing performance during varying workloads, making it a valuable component in both hobbyist and professional setups. -
Question:
What noise level can I expect from the Noctua NF-A4x20 fan?
Answer: The Noctua NF-A4x20 PWM fan is engineered to operate at a very low noise level, typically around 17.9 dBA at full speed. This is remarkably quiet and suitable for environments where silence is essential. The fan's advanced design decreases airflow turbulence, leading to a serene operation even under load. Users will find this particularly beneficial in home offices, studios, or any setting where ambient noise needs to be minimized without compromising cooling performance. -
Question:
Can I control the speed of the Noctua NF-A4x20 fan?
Answer: Yes, the speed of the Noctua NF-A4x20 PWM fan can be controlled through the motherboard or a fan controller that supports PWM. The fan dynamically adjusts its RPM based on the temperature readings from the system, ensuring that cooling is optimized for current conditions. Users can enjoy lower noise levels during light tasks while achieving robust cooling performance for more intensive applications, making it a flexible choice for optimizing airflow in any setup. -
Question:
What type of connector does the Noctua NF-A4x20 fan use?
Answer: The Noctua NF-A4x20 PWM fan features a standard 4-pin connector that enables PWM control. This connection allows the fan to communicate with the motherboard, giving the system the ability to adjust its speed based on temperature needs. This ensures efficient cooling without excessive noise, rendering it ideal for use in compact systems or devices that prioritize both cooling and quietness. It's especially useful for builders aiming for a balance between performance and acoustics. -
Question:
How can I install the Noctua NF-A4x20 fan?
Answer: Installing the Noctua NF-A4x20 PWM fan involves a few straightforward steps. First, ensure you have the required mounting hardware, typically included with the fan. Align the fan with the mounting holes in your device, securing it with screws or clips as necessary. Connect the 4-pin PWM cable to the appropriate header on your motherboard, and you're set. This simple process allows you to enhance your system's cooling capabilities in minutes, making it accessible even for those less experienced with PC building. -
Question:
What is the fan's airflow rate?
Answer: The Noctua NF-A4x20 PWM fan achieves an airflow rate of up to 9.3 m³/h (cubic meters per hour). This airflow efficiency is complemented by its low noise design, ensuring that it provides substantial cooling power without unnecessary noise interference. Users looking to maintain optimal temperatures in small enclosures will find this fan to be an excellent choice, enhancing the overall performance and longevity of their components. -
Question:
Where can I buy the Noctua NF-A4x20 PWM fan in Anguilla?
Answer: You can purchase the Noctua NF-A4x20 PWM, Premium Quiet Fan from Ubuy in Anguilla. Ubuy offers a wide selection of Noctua products, ensuring you have access to this reliable fan for your cooling needs. With a user-friendly interface, Ubuy makes it easy to order online and have the product delivered directly to your location, providing a convenient shopping experience for all your tech component requirements.
Noctua Case Fans Editorial Review
The Noctua NF-A4x20 PWM fan is a small yet formidable addition to any setup needing quieter operation, particularly in the realm of network hardware. Despite its compact 40mm size, this fan demonstrates impressive engineering prowess, effectively transforming noisy routers, firewalls, and compact servers into much more tranquil devices. Reviewers unanimously praise its ability to significantly reduce the sound typically associated with these kinds of components, preventing them from sounding like they are preparing for takeoff. With its smooth PWM control, this fan dynamically adjusts speed based on temperature needs, ensuring optimal cooling performance while prioritizing quiet operation. Customers report that it operates silently, contributing to a distraction-free environment, whether in a home office or a server room. This simplicity and effectiveness align well with Noctua's reputation for high-quality products, as most users feel confident in the build quality and long service life provided. Installation is user-friendly due to the thoughtful inclusion of mounting hardware and accessories, allowing for a smooth integration into various setups. Although some users note that the fan's airflow is limited by its size, the Consensus is that for applications where noise reduction is the primary concern, the NF-A4x20 PWM exceeds expectations. That said, it may fall short in airflow output compared to thicker or larger fans, leading some to question its suitability in more demanding environments. In conclusion, the Noctua NF-A4x20 PWM is lauded for its unmatched quietness and efficient cooling capabilities, making it a worthwhile investment for anyone looking to silence their noisy network gear or compact servers. **
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Pros
- Dramatically quieter than stock 40mm fans
- Smooth, predictable PWM control
- Excellent airflow for its size
- High-quality bearings and long service life
- Instantly improves livability of noisy network gear
Cons
- 40mm size limits absolute airflow
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Features & Benefits
- Premium quiet fan
- Ideal for 1U servers or replacing fans in network and storage equipment
- Max speed of 5000 RPM
- Less than 15 dB(A) noise
- Comes with anti-vibration mounts, fan screws, extension cable, y-cable and OmniJoin adaptor set
- 4-pin PWM version for automatic speed control
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