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Upgrade Your Server Cooling to Near-Silent Performance
The Noctua NF-A4x20 PWM fan is engineered for superior quiet cooling performance, making it perfect for demanding Indian IT environments. Its 40x20mm size and 4-pin PWM connector allow for precise automatic speed control, adapting to your system's needs. This fan is ideal for 1U servers, routers, switches, and NAS devices, ensuring your critical equipment runs smoothly even in high ambient temperatures.
Featuring Noctua's award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation, this fan achieves an exceptional balance of airflow and minimal noise. It operates at a maximum of 5000 RPM, producing only 14.9 dB(A) of sound. A supplied Low-Noise Adaptor can further reduce speed to 4400 RPM for even quieter operation. The fan is constructed from durable fibre-glass reinforced PBT and boasts a MTTF of over 150,000 hours.
Imported directly from authorized US retailers and authorized brand partners, this fan ensures you receive an authentic, high-performance component. All customs duties and GST are included in the listed price. Delivery is handled via ExpressBox, providing tracked transit to your Indian pincode. Experience reliable, quiet cooling for your essential hardware.
Engineered for Silent, Reliable Cooling
Noctua's NF-A4x20 PWM fan is a leader in quiet cooling technology. Its award-winning A-series design, featuring Flow Acceleration Channels and an Advanced Acoustic Optimisation frame, ensures superior airflow with minimal noise. This fan is built for longevity, boasting a MTTF of over 150,000 hours, making it a dependable choice for critical server and networking equipment. Unlike generic fans, Noctua's precision engineering guarantees consistent performance and quiet operation, essential for maintaining optimal conditions in any IT setup.
Ideal for Indian IT Infrastructure
This fan is perfect for Indian users needing reliable cooling for 1U servers, routers, switches, and NAS devices. Its compact 40x20mm size fits into tight spaces common in home offices or small server racks. The 4-pin PWM control ensures it adapts to varying ambient temperatures found across India, while the low noise output is crucial for quiet working environments. For those seeking dependable performance without disruptive fan noise, this Noctua fan is the superior choice over louder, less specialized alternatives.
Typical situations where Noctua NF-A4x20 PWM Fan (40x20mm helps — illustrative scenarios, not customer reviews.
A small business owner in Bangalore needs to cool their network router and NAS storage.
The Noctua NF-A4x20 PWM fan's 40x20mm size fits perfectly into compact NAS enclosures or router chassis. Its ultra-quiet operation ensures it won't disturb the office, while the 150,000+ hour MTTF guarantees reliable cooling for critical data storage and network access.
A home user in Delhi requires a silent fan for a 1U server in their home office.
The fan's 14.9 dB(A) maximum noise level, further reducible with the LNA, makes it ideal for quiet home environments. Its 4-pin PWM control allows the motherboard to manage speed, ensuring efficient cooling without constant fan noise, even during peak processing loads in summer.
| Voltage | 12V DC |
| Power Connector Type | 4-Pin PWM |
| Maximum Speed | 5000 RPM (4400 RPM with LNA) |
| Maximum Airflow | 9.4 m³/h (33.2 CFM) |
| Noise Level | 14.9 dB(A) (12.1 dB(A) with LNA) |
| MTTF | >150,000 hours |
| Included Accessories | Anti-vibration mounts, fan screws, extension cable, y-cable, OmniJoin adaptor set |
| Warranty | 6 years manufacturer’s warranty |
| Cost per use | Over 150,000 hours MTTF: ₹0.021 per hour of operation |
CrowCrowCrow helps you bring this product to India. Any warranty is offered by Noctuaunder its own policy.
| Feature | Noctua NF-A4x20 PWM | Others |
|---|---|---|
| Noise Level (Max) | 14.9 dB(A) (4400 RPM with LNA) | Typically 20-30 dB(A) for comparable 40mm fans, often louder under load. |
| Lifespan (MTTF) | >150,000 hours | Often 30,000-60,000 hours for standard fans; reliability varies greatly. |
| Cooling Performance | Optimised airflow (9.4 m³/h) with quiet operation | May offer higher RPM but with significantly more noise; less focus on acoustic optimisation. |
| Build Quality & Materials | Fibre-glass reinforced PBT | Often standard plastic, less durable under heat and stress. |
| Included Accessories | Extensive: LNA, mounts, cables, OmniJoin adaptors | Basic fan and screws only; proprietary headers may require separate adapters. |
| SKU | cfs2653 |
| GTIN | 0841500110109 |
| Brand | Noctua |
| Model Number | NF-A4x20 PWM |
| Fan Size | 40x40x20 mm (4cm x 4cm x 2cm) |
| Item Dimensions | 4 cm x 4 cm x 2 cm |
| Item Package Weight | 0.16 kg |
| Material | Fibre-glass reinforced PBT |
| Cooling Method | Air |
| Compatible Devices | Desktop |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About Noctua
Noctua is renowned for its premium, high-performance cooling solutions, focusing on quiet operation and exceptional longevity for PC components.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
Noctua NF-A4x20 PWM Fan (40x20mm, 12V, 4-Pin) | Superior Quiet Cooling for Servers & Networking
3,160
This item
Noctua NF-A4x20 PWM Fan (40x20mm, 12V, 4-Pin) | Superior Quiet Cooling for Servers & Networking
3,160
Total price:
10,030
You save 4,440 (31%) Extra3 items selected
3 items
10,030You save 4,440 (31%) Extra
| Attributes | Current |  | |||||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 3,160 4,950 | 3,880 5,180 | 2,990 4,340 | 1,23,040 1,63,720 | 1,480 2,100 | 1,670 2,630 | 1,050 1,240 |
| Rating | 4.80(2,067) | 4.88(8) | 4.70(5,903) | 5.00(1) | 4.40(247) | 4.30(1,504) | 4.50(109) |
| Brand Name | Noctua | AC Infinity | AC Infinity | HP | TYHJ | Saipomor | UHamn |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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