Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Smart Wizard
Get a complete build plan based on budget and goals.
Build Comparison
Compare complete builds side by side.
Part Comparison
Check specs, price, and value across parts.
Bottleneck Calculator
Measure CPU and GPU balance before you buy.
Power Calculator
Estimate wattage and PSU headroom.
Will It Run?
Test your hardware against popular games.
Noctua
| Merchant | Base | Promo | Shipping | Availability | Total | |
|---|---|---|---|---|---|---|
Newegg Sellers | $15.95 | – | FREE | In Stock | $15.95 | Buy |
About This Product
The Noctua A4x20 PWM is a 40mm case fan designed for compact cooling applications. It offers a PWM-controlled speed range of 1200-5000 RPM, providing airflow from 4.89 to 5.53 CFM and static pressure up to 2.26 mmH₂O. This fan is suitable for small form factor cases or specific component cooling where space is highly restricted, offering a balance of performance and noise for its size.
Verdict
“Ideal for specialized, compact cooling needs where a 40mm fan is required.”
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