be quiet! Silent Wings Pro 4 120mm PWM
Expert rating9 / 10
- Fan Size:
- 120mm
- Airflow:
- 66.4 CFM
- Static Pressure:
- 2.66 mmH2O
- Noise Level:
- 30.7 dBA
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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: be quiet! Last updated: 2026-09-12
Where to buy
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be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) Review
If you want be quiet!'s highest static-pressure fan rather than the balanced Silent Wings 4, the Pro 4 is the line built specifically for radiators and restrictive front filters.
We'd send radiator builds here over the standard Silent Wings 4, since the Pro 4's blade geometry is tuned for pressure first and it's noticeably better behind a 360mm AIO or a dense dust filter.
Pro vs Standard
The Pro 4 uses a six-pole motor and a narrower, steeper blade angle than the standard Silent Wings 4, sacrificing a little open-air airflow for meaningfully more static pressure under restriction.
Comparison to Alternatives
Against the be quiet! Silent Wings 4 120mm PWM High-Speed already in this catalog, the Pro 4 pushes more static pressure at a similar noise floor, making it the better radiator fan of the two despite the standard model's higher headline RPM. Against the Noctua NF-A12x25 PWM in the catalog, the two trade blows on pressure and noise, with the Noctua holding a slight efficiency edge and the Pro 4 undercutting it on price in most markets.
Specifications
Identity and packaging
| Brand | be quiet! |
|---|---|
| Model | Silent Wings Pro 4 120mm PWM |
| Fan Thickness | 25 mm |
Design
| Fan Size | 120 mm |
|---|---|
| Bearing Type | Fluid Dynamic |
| Lighting | No RGB |
Performance
| Static Pressure | 5.31 mmH2O |
|---|---|
| Max Speed | 3000 RPM |
| Noise Level | 36.9 dBA |
| PWM Control | Yes |
Performance at maximum speed
| Airflow | 83.9 CFM |
|---|
Motor and bearing
| Rated Life | 300000 hours |
|---|
Airflow direction and frame
| Anti Vibration Pads | Yes |
|---|
Power and control
| Max Power Draw | 3.6 W |
|---|
Connection and daisy chain
| Connector Type | 4-Pin PWM |
|---|---|
| Lighting Connector | None |
Lighting
| RGB Lighting | No |
|---|---|
| Lighting Type | None |
Physical and finish
| Colorway | Black |
|---|---|
| Cable Length | 500 mm |
| Weight | 227 g |
Market
| Warranty | 5 years |
|---|---|
| Positioning | Premium |
| Source URL | https://www.bequiet.com/en/casefans/3705 |
|---|
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating9 / 10
be quiet!'s best radiator fan, closing most of the gap to Noctua's A12x25 at a friendlier price.
Best for
- 360mm and 280mm AIO radiators
- Restrictive front filters and dense meshes
- Quiet high-static-pressure builds
Not for
- Open-air mesh cases where pressure is wasted
- RGB lighting requirements
- Absolute lowest-noise-at-idle priorities
FAQs
What are the key specifications of the be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM)?
The be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) is a case fan from be quiet!. Key specs: Fan Size 120, Bearing Type Fluid Dynamic, Lighting No RGB, Airflow 66.4, Static Pressure 2.66.
Will the be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) work with my current setup?
The be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) lists Fan Size is 120. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) best suited to?
It suits 360mm and 280mm aio radiators, restrictive front filters and dense meshes, quiet high-static-pressure builds.
What are the drawbacks of the be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM)?
It is a poor fit for open-air mesh cases where pressure is wasted, rgb lighting requirements, absolute lowest-noise-at-idle priorities.
Compare and read more
- be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) vs Noctua NF-F12 PWM (120mm/53.7 CFM/2.61 mmH2O Static Pressure/1500 RPM Max/22.4 dBA/SSO2 Bearing/No RGB/PWM)
- be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) vs Noctua NF-A12x25 PWM chromax.black.swap (120mm/60.1 CFM/2.34 mmH2O Static Pressure/2000 RPM Max/22.6 dBA/SSO2 Bearing/No RGB/PWM)
- be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) vs Cooler Master MobiusLink ARGB Fan (120mm/62.0 CFM/2.4 mmH2O Static Pressure/2000 RPM Max/30.0 dBA/Loop Dynamic Bearing/ARGB/PWM)
- be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) vs Corsair QX120 RGB (120mm/65.8 CFM/3.29 mmH2O Static Pressure/2500 RPM Max/34 dBA/Magnetic Dome Bearing/RGB/iCUE LINK)
- be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM) vs EK-Vardar X3M 120ER D-RGB (120mm/73.0 CFM/3.66 mmH2O Static Pressure/2200 RPM Max/29.7 dBA/Fluid Dynamic Bearing/D-RGB/PWM)