You save 1,470 (32%)
32% off the seller list price
Yes, we deliver to Lucknow, India
Doorstep delivery by 26 Oct - 28 Oct from USA
Premium 5V Fan with Long-Term Stability
Noctua NF-A4x20 5V is a high-performance, quiet fan engineered with advanced aerodynamic features such as Flow Acceleration Channels and an AAO frame. Its 5V operation makes it ideal for industrial and network devices requiring stable, low-noise cooling. The fan features smooth Commutation Drive technology and Noctua’s reference class SSO2 bearings, ensuring long-term stability and minimal vibration. Included are anti-vibration mounts, screws, extension cable, and OmniJoin adaptor for versatile installation. With a 6-year manufacturer’s warranty, this fan is built for demanding environments where reliability and silence are critical. Please note: being a 5V fan, it cannot be run at 12V without damage.
Designed for 1U servers, NAS, routers, and switches, the NF-A4x20 5V offers a maximum speed of 5000 RPM and a noise level of just 14.9 dB(A). Reviewers in humid Indian climates report steady, quiet operation over years, with long-term stability. Ideal for replacing noisy or failing fans in Indian network setups, it ships via ExpressBox with all duties paid, arriving in 12-14 days.
Advanced Aerodynamic Engineering
Noctua’s NF-A4x20 5V features Flow Acceleration Channels and AAO frame, delivering superior airflow with minimal noise. Its reference class SSO2 bearings ensure long-term stability, making it ideal for critical 5V applications in India’s demanding environments.
Suitable for Industrial & Network Use
Designed for 1U servers, NAS, routers, and switches, this fan supports 5V industrial applications. Reviewers in India report consistent, quiet performance over years, with long lifespan and reliable operation, shipped with all hardware for easy installation.
Typical situations where Noctua NF-A4x20 5V Quiet Fan 40mm | Premium 5V helps — illustrative scenarios, not customer reviews.
Rajesh, 35, Bangalore, needed a quiet fan for his NAS server to operate in a humid environment without noise disturbance.
Replaced existing noisy fan with Noctua NF-A4x20 5V, which maintained stable, quiet operation over 5 years, saving ₹2000 in replacements.
| Supported Devices | Network equipment, NAS, routers, switches |
| Replaces Fans In | 1U servers, DVRs, industrial devices |
| Reapplication math | Supports over 150,000 hours MTTF, approx 6 years of continuous use |
| Shelf life | Factory-sealed, long shelf life, check manufacturer's date |
| Cost per use | ₹3,150 per fan |
This is an imported product. The manufacturer's warranty depends on Noctua: some brands honour it worldwide, others only in the country of purchase (USA). We do not add a warranty of our own on top of it.
| Feature | Noctua NF-A4x20 5V | Others |
|---|---|---|
| Size & Compatibility | 40x40x20 mm, supports 5V proprietary headers | Typically 40mm fans, may support 5V but with variable quality |
| Noise Level | 14.9 dB(A), supports quiet operation | Usually 20-25 dB, noisier in Indian environments |
| Lifespan & Reliability | Over 150,000 hours MTTF, premium bearings | Often 50,000-80,000 hours, variable quality bearings |
| Price & Cost per Use | ₹3,150 for 1 unit, ₹3,150 per fan | ₹300-₹500 per fan, often lower lifespan and noisier |
| SKU | aus2950 |
| GTIN | 0841500110123 |
| Brand | Noctua |
| Size | 40x40x20 mm |
| Color | Brown |
| Voltage | 5V |
| Wattage | 0.5W |
About Noctua
Noctua is a leading Austrian manufacturer known for premium, quiet cooling solutions with over a decade of innovation and reliability in thermal management.
Compliance & Legal
No specific regulatory compliance notes applicable; product is a 5V fan for industrial use, no medical or safety warnings required.
Share your experience
Bought this from CrowCrowCrow? Other buyers want to hear how it went.
This item:
Noctua NF-A4x20 5V Quiet Fan 40mm | Premium 5V, Low Noise, 6-Year Warranty
3,150
This item
Noctua NF-A4x20 5V Quiet Fan 40mm | Premium 5V, Low Noise, 6-Year Warranty
3,150
Total price:
1,29,160
You save 43,500 (25%) Extra3 items selected
3 items
1,29,160You save 43,500 (25%) Extra
| Attributes |  |  | |||||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 3,150 4,620 | 2,970 4,320 | 1,23,040 1,63,720 | 1,480 2,110 | 1,580 1,670 | 1,040 1,240 | 4,700 6,620 |
| Rating | 4.80(393) | 4.70(5,903) | 5.00(1) | 4.40(247) | 4.30(1,504) | 4.50(109) | 4.70(75) |
| Brand Name | Noctua | AC Infinity | HP | TYHJ | Saipomor | UHamn | Yoqanr |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
Why shop with us
One price. One payment. No surprises.
High risk
Buying Direct
Crowcrowcrow
Safe Lane
