be quiet!

be quiet! Silent Wings 4 Cooling Fan | 120mm PWM | 1600 RPM | White | BL114

Name: be quiet! Silent Wings 4 Cooling Fan | 120mm PWM | 1600 RPM | White | BL114
Brand: be quiet!
SKU: B0CYCQQT4S

Bottom line: The be quiet! Silent Wings 4 Cooling Fan: 6-pole motor plus fluid-dynamic bearing keeps vibration low; main trade-off: 1600 RPM tops out below high-static-pressure rivals that hit 2000+.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-20

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ 6-pole motor plus fluid-dynamic bearing keeps vibration low
✓ Blades tuned for heat sinks, not just open-air case flow
✓ Funnel-shaped outlets and tight tip clearance raise static pressure
✓ PWM lets the board scale speed below the 1600 RPM ceiling
✓ 5-year manufacturer warranty, long for a 120mm fan

Cons

✗ 1600 RPM tops out below high-static-pressure rivals that hit 2000+
✗ White frame clashes with blacked-out or RGB-heavy builds
✗ No RGB or ARGB lighting of any kind
✗ Needs a PWM header; a DC-only or 3-pin header loses speed control

Manufacturer description

The be quiet! Silent Wings 4 120mm PWM fan (BL114) is built for builders who want static pressure without the noise penalty. Its 6-pole motor and fluid-dynamic bearing cut vibration at the source, so the fan stays virtually inaudible at its regular 1600 RPM ceiling rather than relying on a low-RPM cap to stay quiet. The blade geometry is optimized specifically for heat sinks, and the frame pairs a small tip clearance with funnel-shaped air outlets to generate extremely high air pressure, which is what you want pushing air through dense CPU cooler fins or a restrictive radiator instead of…

SpecPicks Verdict

SpecPicks scored be quiet! Silent Wings 4 Cooling Fan using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. be quiet!'s retro cpu coolers & fans 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 retro cpu coolers & fans 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

How loud is the Silent Wings 4 at full speed?

be quiet! rates it as virtually inaudible at regular operating speed, which tops out at 1600 RPM. The 6-pole motor and fluid-dynamic bearing are the reason: both reduce vibration rather than masking noise.

Is this fan better for a CPU cooler or a case fan?

Its blades are optimized for heat sinks and the frame uses funnel-shaped air outlets for extremely high air pressure, so it favors restrictive mounts like CPU tower coolers and radiators over open case panels.

Does the BL114 support PWM speed control?

Yes. It is a 120mm PWM fan, so a PWM motherboard header can scale it up to 1600 RPM and back down at idle. On a 3-pin or DC-only header you lose that control.

What warranty does be quiet! include?

The fan carries a 5-year manufacturer warranty. Check the product listing for current registration requirements and regional terms.

Is the Silent Wings 4 worth it compared to cheaper 120mm fans?

The case for it is the fluid-dynamic bearing, heat-sink-tuned blades, and 5-year coverage rather than raw RPM.

Key Features

Optimized fan blades for the highest performance on heat sinks
6-pole fan motor and fluid-dynamic bearing for less vibration and very smooth operations; Virtually inaudible operation at regular speed
Small tip clearance and a fan frame with funnel-shaped air outlets for extremely high air pressure
6-pole fan motor and fluid-dynamic bearing for less vibration and very smooth operations
5-year manufacturer warranty

Full Specifications

Brand	be quiet!
Model	BL114
Voltage	230 volts
Wattage	1.4 watts
Material	Copper
Set Name	PWM
Unit Count	1 Count
Noise Level	18.9 db
Part Number	BL114
Material Type	Copper
Cooling Method	Air
Number of Items	1
Number of Packs	40
Vibration/Rumble	Yes
Air Flow Capacity	48.7 cfm
Compatible Devices	Desktop
Included Components	be quiet! Fan BL114 Silent Wings 4 120mm PWM White Retail
Power Connector Type	4-Pin
Warranty Description	1 Year Manufacturer
Maximum Rotational Speed	1600 rpm

Ready to buy?

be quiet! Silent Wings 4 Cooling Fan | 120mm PWM | 1600 RPM | White | BL114 is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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