be quiet! Silent Wings Pro 4 120mm PWM 3000 RPM Premium Low Noise Cooling Fan | 4-Pin | BL098
Bottom line: The be quiet! Silent Wings Pro 4 120mm PWM 3000 RPM Low Noise Cooling Fan ($29.90 on Amazon as of 2026-10-21 04:20 UTC): Three-position speed switch caps PWM at medium, high, or ultra-high (3000 rpm); main trade-off: 3000 rpm ceiling is clearly audible at the top of its range.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Three-position speed switch caps PWM at medium, high, or ultra-high (3000 rpm)
- ✓ Funnel-shaped frame outlet and small tip clearance for high static pressure
- ✓ Blade profile tuned for radiators and dense heatsink fins, not open airflow
- ✓ 6-pole motor plus fluid-dynamic bearing cuts vibration and motor hum
Cons
- ✗ 3000 rpm ceiling is clearly audible at the top of its range
- ✗ Speed switch is set on the fan itself, so recabling means opening the case
- ✗ Pressure-optimized blades are overkill for open case-exhaust duty
- ✗ Single 120mm size — no 140mm option in this model (BL098)
Manufacturer description
The be quiet! Silent Wings Pro 4 is a 120mm PWM case fan built for the two jobs most fans handle badly: pushing air through dense radiator fins and thick heatsink stacks. Its optimized blade profile, small tip clearance, and funnel-shaped air outlet on the frame generate extremely high static pressure, which is what actually matters when a fan has to fight restriction rather than move air across open space. A three-position speed switch lets you cap maximum PWM speed at medium, high, or ultra-high (up to 3000 rpm), so you can set the ceiling once and let your motherboard curve handle the…
SpecPicks Verdict
SpecPicks scored be quiet! Silent Wings Pro 4 120mm PWM 3000 RPM Low Noise Cooling Fan using a rating × review-volume × price-fit model applied to published specs and reviews across the PC & gaming hardware category. be quiet!'s PC & gaming hardware lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for PC & gaming hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Is the Silent Wings Pro 4 good for a radiator, or just case airflow?
It is built for radiators. be quiet! lists optimized blades for radiators and heat sinks, plus small tip clearance and a funnel-shaped air outlet for extremely high air pressure — the trait that matters through dense fin stacks.
What does the speed switch actually do?
It sets the fan's maximum PWM speed to one of three positions: medium-speed, high-speed, or ultra-high-speed up to 3000 rpm. Your motherboard's PWM curve then controls speed under that ceiling.
Is it loud at 3000 rpm?
be quiet! rates it as virtually inaudible at regular speed, which is where the medium and high switch positions keep it. Any 120mm fan spinning 3000 rpm is audible, so use the ultra-high setting for thermal headroom rather than as a default.
Will it work with my motherboard's fan control?
Yes — it uses a standard 4-pin PWM connector, so any 4-pin motherboard header or PWM fan hub can control it. Check your board's header count before planning a multi-fan build.
How is the bearing likely to hold up?
It uses a fluid-dynamic bearing paired with a 6-pole motor for less vibration and smoother operation. Check the product listing for current warranty terms.
Key Features
- Optimized fan blades for the highest performance on radiators and heat sinks
- Speed switch allows changing maximum PWM speed between medium-speed, high-speed and ultra-high-speed (up to 3000 rpm)
- Small tip clearance and a fan frame with a funnel-shaped air outlet for extremely high air pressure
- Virtually inaudible operation at regular speed
- 6-pole fan motor and fluid-dynamic bearing for less vibration and very smooth operations
Full Specifications
| Brand | be quiet! |
|---|---|
| Model | BL098 |
| Voltage | 12 Volts |
| Wattage | 3 watts |
| Material | Copper |
| Set Name | PWM Pro Version |
| Unit Count | 1.0 Count |
| Noise Level | 36.9 Decibels |
| Part Number | BL098 |
| Compatibility | Switch |
| Material Type | Copper |
| Cooling Method | Fan |
| Number of Items | 1 |
| Vibration/Rumble | Yes |
| Air Flow Capacity | 83.9 Cubic Feet Per Minute |
| Compatible Devices | Desktop, Laptop, Server, Graphic Cards, Electronic Enclosures, Other Cooling Systems |
| Included Components | be quiet! Fan BL098 Silent Wings Pro 4 120mm PWM Black Retail |
| Power Connector Type | 4-Pin |
| Warranty Description | 1 year |
| Maximum Rotational Speed | 3000 RPM |
Ready to buy?
be quiet! Silent Wings Pro 4 120mm PWM 3000 RPM Premium Low Noise Cooling Fan | 4-Pin | BL098 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
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