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be quiet! Silent Wings Pro 4 140mm PWM vs Lian Li UNI FAN AL120: Comparison
What is the difference between be quiet! Silent Wings Pro 4 140mm PWM and Lian Li UNI FAN AL120?
On airflow the spread is 34%, be quiet! Silent Wings Pro 4 140mm PWM 97.4 CFM against Lian Li UNI FAN AL120 64.5 CFM, so be quiet! Silent Wings Pro 4 140mm PWM takes it. Static pressure runs the same way, 3.64 mmH2O on the be quiet! Silent Wings Pro 4 140mm PWM versus 2.62 mmH2O on the Lian Li UNI FAN AL120, another win for be quiet! Silent Wings Pro 4 140mm PWM. Add warranty to that, 5 years on the be quiet! Silent Wings Pro 4 140mm PWM versus 2 years on the Lian Li UNI FAN AL120, and the pattern holds. be quiet! Silent Wings Pro 4 140mm PWM also leads on max speed, 2400 RPM on the be quiet! Silent Wings Pro 4 140mm PWM versus 1900 RPM on the Lian Li UNI FAN AL120.
Which should you buy, be quiet! Silent Wings Pro 4 140mm PWM or Lian Li UNI FAN AL120?
Buy the be quiet! Silent Wings Pro 4 140mm PWM for 280mm and 420mm AIO radiators and Quiet high-pressure builds, though it is not the pick for RGB-focused builds and open mesh cases where pressure is wasted. The Lian Li UNI FAN AL120 is the one to take for front intake behind dense dust filters and multi-fan ARGB builds wanting more airflow than the SL120, though it is the wrong buy for noise-sensitive builds (SL120 is quieter) and single-fan installs. Our rating of the be quiet! Silent Wings Pro 4 140mm PWM (9/10): one of the strongest 140mm radiator fans available, at the cost of skipping RGB entirely.
Frequently asked questions
Do the be quiet! Silent Wings Pro 4 140mm PWM and Lian Li UNI FAN AL120 differ on noise level?
Yes. Noise Level reads 36.8 dBA on the be quiet! Silent Wings Pro 4 140mm PWM versus 28.3 dBA on the Lian Li UNI FAN AL120.
Is the Bearing Type the same on the be quiet! Silent Wings Pro 4 140mm PWM and Lian Li UNI FAN AL120?
It is. Both are listed at Fluid Dynamic, so it is not a reason to pick one over the other.
Specs and benchmarks
Fan Size
- be quiet! Silent Wings Pro 4 140mm PWM
- 140 mm
- Lian Li UNI FAN AL120
- 120 mm
Brand
- be quiet! Silent Wings Pro 4 140mm PWM
- be quiet!
- Lian Li UNI FAN AL120
- Lian Li
Model
- be quiet! Silent Wings Pro 4 140mm PWM
- Silent Wings Pro 4 140mm PWM
- Lian Li UNI FAN AL120
- UNI FAN AL120
Bearing Type
- be quiet! Silent Wings Pro 4 140mm PWM
- Fluid Dynamic
- Lian Li UNI FAN AL120
- Fluid Dynamic
Lighting
- be quiet! Silent Wings Pro 4 140mm PWM
- No RGB
- Lian Li UNI FAN AL120
- ARGB
Fan Thickness
- be quiet! Silent Wings Pro 4 140mm PWM
- 25 mm
- Lian Li UNI FAN AL120
- 25 mm
Static Pressure
- be quiet! Silent Wings Pro 4 140mm PWM
- 3.64 mmH2OBest
- Lian Li UNI FAN AL120
- 2.62 mmH2O-28%
Max Speed
- be quiet! Silent Wings Pro 4 140mm PWM
- 2400 RPMBest
- Lian Li UNI FAN AL120
- 1900 RPM-21%
Airflow
- be quiet! Silent Wings Pro 4 140mm PWM
- 97.4 CFMBest
- Lian Li UNI FAN AL120
- 64.5 CFM-34%
Noise Level
- be quiet! Silent Wings Pro 4 140mm PWM
- 36.8 dBA
- Lian Li UNI FAN AL120
- 28.3 dBABest
PWM Control
- be quiet! Silent Wings Pro 4 140mm PWM
- Yes
- Lian Li UNI FAN AL120
- Yes
Max Power Draw
- be quiet! Silent Wings Pro 4 140mm PWM
- 6 W
- Lian Li UNI FAN AL120
- 5.94 WBest
Connector Type
- be quiet! Silent Wings Pro 4 140mm PWM
- 4-Pin PWM
- Lian Li UNI FAN AL120
- Proprietary
Lighting Connector
- be quiet! Silent Wings Pro 4 140mm PWM
- None
- Lian Li UNI FAN AL120
- Proprietary
RGB Lighting
- be quiet! Silent Wings Pro 4 140mm PWM
- No
- Lian Li UNI FAN AL120
- Yes
Lighting Type
- be quiet! Silent Wings Pro 4 140mm PWM
- None
- Lian Li UNI FAN AL120
- ARGB 5V
Warranty
- be quiet! Silent Wings Pro 4 140mm PWM
- 5 yearsBest
- Lian Li UNI FAN AL120
- 2 years-60%
Positioning
- be quiet! Silent Wings Pro 4 140mm PWM
- Premium
- Lian Li UNI FAN AL120
- Mainstream
Which one should you pick?
Choose be quiet! Silent Wings Pro 4 140mm PWM if you want the higher static pressure (3.64 mmH2O vs 2.62 mmH2O), the higher max speed (2400 RPM vs 1900 RPM) and the higher airflow (97.4 CFM vs 64.5 CFM).
Choose Lian Li UNI FAN AL120 if you want the lower noise level (28.3 dBA vs 36.8 dBA).
Price comparison
| Retailer | be quiet! Silent Wings Pro 4 140mm PWM | Lian Li UNI FAN AL120 |
|---|---|---|
| Amazon | View on 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 140mm PWM
9 / 10 Expert Rating
One of the strongest 140mm radiator fans available, at the cost of skipping RGB entirely.
Lian Li UNI FAN AL120
9 / 10 Expert Rating
The higher-output half of Lian Li's daisy-chain ARGB duo, best behind restrictive front-panel filters.