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be quiet! Silent Wings Pro 4 120mm PWM vs Lian Li UNI FAN P28: Comparison
be quiet! Silent Wings Pro 4 120mm PWM vs Lian Li UNI FAN P28: the airflow difference
The gap that matters here is airflow: be quiet! Silent Wings Pro 4 120mm PWM 83.9 CFM against Lian Li UNI FAN P28 92 CFM, which puts Lian Li UNI FAN P28 9% ahead. Lian Li UNI FAN P28 also leads on warranty, 5 years on the be quiet! Silent Wings Pro 4 120mm PWM versus 6 years on the Lian Li UNI FAN P28. Add max speed to that, 3000 RPM on the be quiet! Silent Wings Pro 4 120mm PWM versus 2600 RPM on the Lian Li UNI FAN P28, and the pattern holds.
Who each one is for
Buy the be quiet! Silent Wings Pro 4 120mm PWM for 360mm and 280mm AIO radiators and restrictive front filters and dense meshes, though it is the wrong buy for open-air mesh cases where pressure is wasted and RGB lighting requirements. The Lian Li UNI FAN P28 is the one to take for thick, high-FPI custom-loop radiators and builders who want daisy-chain cabling with real performance, though it is not built for Quiet-first case airflow duty and budget builds. Our rating of the be quiet! Silent Wings Pro 4 120mm PWM (9/10): be quiet!'s best radiator fan, closing most of the gap to Noctua's A12x25 at a friendlier price. Our rating of the Lian Li UNI FAN P28 (9/10): the performance option in Lian Li's daisy-chain family, for radiators that actually need the extra static pressure.
Frequently asked questions
Do the be quiet! Silent Wings Pro 4 120mm PWM and Lian Li UNI FAN P28 differ on noise level?
Yes. Noise Level reads 36.9 dBA on the be quiet! Silent Wings Pro 4 120mm PWM versus 32.1 dBA on the Lian Li UNI FAN P28.
Is the Fan Size the same on the be quiet! Silent Wings Pro 4 120mm PWM and Lian Li UNI FAN P28?
It is. Both are listed at 120 mm, so it is not a reason to pick one over the other.
Specs and benchmarks
Fan Size
- be quiet! Silent Wings Pro 4 120mm PWM
- 120 mm
- Lian Li UNI FAN P28
- 120 mm
Brand
- be quiet! Silent Wings Pro 4 120mm PWM
- be quiet!
- Lian Li UNI FAN P28
- Lian Li
Model
- be quiet! Silent Wings Pro 4 120mm PWM
- Silent Wings Pro 4 120mm PWM
- Lian Li UNI FAN P28
- UNI FAN P28
Bearing Type
- be quiet! Silent Wings Pro 4 120mm PWM
- Fluid Dynamic
- Lian Li UNI FAN P28
- Fluid Dynamic
Lighting
- be quiet! Silent Wings Pro 4 120mm PWM
- No RGB
- Lian Li UNI FAN P28
- None
Fan Thickness
- be quiet! Silent Wings Pro 4 120mm PWM
- 25 mm
- Lian Li UNI FAN P28
- 28 mm
Static Pressure
- be quiet! Silent Wings Pro 4 120mm PWM
- 5.31 mmH2OBest
- Lian Li UNI FAN P28
- 4.79 mmH2O-10%
Max Speed
- be quiet! Silent Wings Pro 4 120mm PWM
- 3000 RPMBest
- Lian Li UNI FAN P28
- 2600 RPM-13%
Airflow
- be quiet! Silent Wings Pro 4 120mm PWM
- 83.9 CFM-9%
- Lian Li UNI FAN P28
- 92 CFMBest
Noise Level
- be quiet! Silent Wings Pro 4 120mm PWM
- 36.9 dBA
- Lian Li UNI FAN P28
- 32.1 dBABest
Connector Type
- be quiet! Silent Wings Pro 4 120mm PWM
- 4-Pin PWM
- Lian Li UNI FAN P28
- Proprietary
Lighting Connector
- be quiet! Silent Wings Pro 4 120mm PWM
- None
- Lian Li UNI FAN P28
- None
RGB Lighting
- be quiet! Silent Wings Pro 4 120mm PWM
- No
- Lian Li UNI FAN P28
- No
Lighting Type
- be quiet! Silent Wings Pro 4 120mm PWM
- None
- Lian Li UNI FAN P28
- None
Warranty
- be quiet! Silent Wings Pro 4 120mm PWM
- 5 years-17%
- Lian Li UNI FAN P28
- 6 yearsBest
Positioning
- be quiet! Silent Wings Pro 4 120mm PWM
- Premium
- Lian Li UNI FAN P28
- Premium
Which one should you pick?
Choose be quiet! Silent Wings Pro 4 120mm PWM if you want the higher static pressure (5.31 mmH2O vs 4.79 mmH2O) and the higher max speed (3000 RPM vs 2600 RPM).
Choose Lian Li UNI FAN P28 if you want the higher airflow (92 CFM vs 83.9 CFM), the lower noise level (32.1 dBA vs 36.9 dBA) and the higher warranty (6 years vs 5 years).
Price comparison
| Retailer | be quiet! Silent Wings Pro 4 120mm PWM | Lian Li UNI FAN P28 |
|---|---|---|
| Amazon | View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
be quiet! Silent Wings Pro 4 120mm PWM
9 / 10 Expert Rating
be quiet!'s best radiator fan, closing most of the gap to Noctua's A12x25 at a friendlier price.
Lian Li UNI FAN P28
9 / 10 Expert Rating
The performance option in Lian Li's daisy-chain family, for radiators that actually need the extra static pressure.




