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be quiet! Silent Wings 4 140mm PWM (BL096)

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be quiet! Silent Wings 4 140mm PWM
Silentquiet
120 mm, black120 mm, white140 mm, black140 mm, white
Main specs
Featuresfor case
Product typefan
Fan
Number of fans1
Fan size140 mm
Fan thickness25 mm
BearingFluid Dynamic Bearing
Max. RPM1100 rpm
Speed controllerauto (PWM)
Max. air flow51.3 CFM
Static pressure0.92 mm H2O
Noise level14 dB
Power source4-pin
General
Mount typebolts
Manufacturer's warranty3 years
Dimensions140x140x25 mm
Weight220 g
Official Websitebequiet.com
Added to E-CatalogJuly 2022
P/N
BL096

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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be quiet! Silent Wings 4 140mm PWM Chassis Fan BL096

NO COMPROMISE SILENCE AND PERFORMANCE Equally quiet and performant operation Silent Wings 4 140mm PWM is the fan of choice... morefor all possible operations. Be it in a case, on radiators or heat sinks – Features like the silence-optimized fan blades and the funnel shaped fan frame make Silent Wings 4 140mm PWM a fan that makes no compromises between virtually inaudible operation and high performance. OPTIMIZED FOR HIGH-END PERFORMANCE Minimum tolerances for maximum air pressure Silent Wings 4 140mm PWM makes for extraordinary air pressure and, therefore, significant increases in the system’s performance. The decreased distance between the fan blades and the frame makes it possible. By that, the Silent Wings 4 140mm PWM allows the user to run even the most demanding applications. DIFFERENT MOUNTING OPTIONS For any purpose Silent Wings 4 140mm PWM has 2 mounting options in the scope of delivery. The pre-installed anti-vibration mounting reduces noise-generating vibrations to a minimum. For radiators and heat sinks, the plastic mounting is the first choice. Both solutions have in common that they enable virtually inaudible operation at regular speed. 6-POLE FAN MOTOR The key for virtually inaudible operation when needed 6-pole fan motor with 3 phases for very low power consumption, less vibration and therefore quiet max. operation of 13.6dB(A). Equipped with this state-of-the-art technology the fan is virtually inaudible when operated in mid-speed. FLUID-DYNAMIC BEARING For a sustainable operation The advanced fluid-dynamic bearing (FDB) enables a super long fan life of up to 300,000 hours. In addition, it reduces the vibrations significantly and supports the virtually inaudible operation of Silent Wings 4 140mm PWM. ELEGANT LOOK Magnificent appearance from all angles Be it as a radiator fan or in the case: Silent Wings 4 140mm PWM always makes a good impression. The all-black design combined with the high-grade fan sticker makes the fan shine in any system. This makes Silent Wings 4 140mm PWM a high performant and an incredibly good-looking fan.
CCLonline.com
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Be Quiet Silent Wings 4 140mm PWM 6-Pole Fan - High Performance & Low Noise - BL096 BL096

Experience unparalleled silence and superior cooling with the Be Quiet Silent Wings 4 140mm PWM 6-Pole Fan - BL096. Perfect f... moreor enhancing your PC's performance without compromising on peace, this fan combines advanced engineering with whisper-quiet operation. Its intelligent PWM control ensures optimal airflow while maintaining low noise levels, making it an essential component for any build追求。这个æ��è¿°å·²ç»�针对主è¦�特点进行了优化，但如果需è¦�ä¸¥æ ¼æŽ§åˆ¶åœ¨1000字符内，并完全符å�ˆè¦�求，这里是一个更精简的版本：nnUpgrade your PC with the Be Quiet Silent Wings 4 140mm PWM Fan - BL096. Engineered for superior cooling and whisper-quiet operation, this fan features intelligent PWM control for optimal airflow. Ideal for maintaining a peaceful yet powerful computing environment.
Box.co.uk
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be quiet! be quiet! Silent Wings 4 140mm PWM Fan BL096

No compromise silence and performanceSilent Wings 4 140mm PWM combines all features of a virtually inaudible with an extremel... morey performant fan. A 6-pol-motor and anti-vibration mountings combined with fan blades optimized for maximum airflow make Silent Wings 4 140mm PWM the perfect choice for the most demanding applications in high-end systems.- Optimized fan blades for the highest performance on heat sinks- Small tip clearance and fan frame with funnel-shaped air outlets for extremely high air pressure- Virtually inaudible operation at regular speed- 6-pole fan motor for less vibration and power consumption- Fluid-dynamic bearing enables very smooth operation- Anti-vibration mounting with push pins for installation as a case fan- An alternative screwed installation can replace the default mounting option- PWM controlled fan speed through the motherboard- Super-long lifespan of 300,000h- Elegant look with high-grade fan sticker in an all-black design- 5-year manufacturer warrantySpecification:- Model: Silent Wings 4 140mm PWM- Dimensions (mm): 140- Fan speed @ 100% PWM / 12V (rpm): 1100- Air flow @ 100% PWM / 12V (cfm / m3/h): 451.3 / 87.16- Air pressure @ 100% PWM / 12V (mm H2O): 0.92- Noise level @ 100% PWM / 12V (dB(A)): 13.6- Lifespan (h / 25°C): 300,000- Color option: Black- Dimensions (L x W x H), (mm): 140 x 140 x 25- Bearing technology: FDB- Motor technology: 6-pole fan motor- Cable length (mm) 500- Connector: 4 pin PWM- Warranty: 5 Years
Overclockers.co.uk
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be quiet Silent Wings 4 140mm PWM fan optimized fan blades extraordinary high performance extremely high air pressure virtua

Silent Wings 4 140mm PWM is the fan of choice for all possible operations. Be it in a case, on radiators or heat sinks – Feat... moreures like the silence-optimized fan blades and the funnel shaped fan frame make Silent Wings 4 140mm PWM a fan that makes no compromises between virtually inaudible operation and high performance. Silent Wings 4 140mm PWM makes for extraordinary air pressure and, therefore, significant increases in the system’s performance. The decreased distance between the fan blades and the frame makes it possible. By that, the Silent Wings 4 140mm PWM allows the user to run even the most demanding applications. Silent Wings 4 140mm PWM has 2 mounting options in the scope of delivery. The pre-installed anti-vibration mounting reduces noise-generating vibrations to a minimum. For radiators and heat sinks, the plastic mounting is the first choice. Both solutions have in common that they enable virtually inaudible operation at regular speed. 6-pole fan motor with 3 phases for very low power consumption, less vibration and therefore quiet max. operation of 13.6dB(A). Equipped with this state-of-the-art technology the fan is virtually inaudible when operated in mid-speed. The advanced fluid-dynamic bearing (FDB) enables a super long fan life of up to 300,000 hours. In addition, it reduces the vibrations significantly and supports the virtually inaudible operation of Silent Wings 4 140mm PWM.
Amazon.co.uk
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£22.58
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Be Quiet BL096

Features: Equally quiet and performant operation:- Silent Wings 4 140mm PWM is the fan of choice for all possible operations.... moreBe it in a case, on radiators or heat sinks – Features like the silence-optimized fan blades and the funnel shaped fan frame make Silent Wings 4 140mm PWM a fan that makes no compromises between virtually inaudible operation and high performance.Minimum tolerances for maximum air pressure:- Silent Wings 4 140mm PWM makes for extraordinary air pressure and, therefore, significant increases in the system's performance. The decreased distance between the fan blades and the frame makes it possible. By that, the Silent Wings 4 140mm PWM allows the user to run even the most demanding applications.Different Mounting Options For Any Purpose:- Silent Wings 4 140mm PWM has 2 mounting options in the scope of delivery. The pre-installed anti-vibration mounting reduces noise-generating vibrations to a minimum. For radiators and heat sinks, the plastic mounting is the first choice. Both solutions have in common that they enable virtually inaudible operation at regular speed.The key for virtually inaudible operation when needed:- 6-pole fan motor with 3 phases for very low power consumption, less vibration and therefore quiet max. operation of 13.6dB(A). Equipped with this state-of-the-art technology the fan is virtually inaudible when operatedin mid-speed.Fluid-Dynamic Bearing For a sustainable operation:- The advanced fluid-dynamic bearing (FDB) enables a super long fan life of up to 300,000 hours. In addition, it reduces the vibrations significantly and supports the virtually inaudible operation of Silent Wings 4 140mm PWM.Magnificent appearance from all angles:- Be it as a radiator fan or in the case: Silent Wings 4 140mm PWM always makes a good impression. The all-black design combined with the high-grade fan sticker makes the fan shine in any system. This makesSilent Wings 4 140mm PWM a high performant and an incredibly good-looking fan.Specifications:- Dimensions (mm): 140- Fan speed 100% PWM / 12V (rpm): 1100- Air Flow 100% PWM / 12V (CFM / m3/h): 51.3 / 87.16- Air Pressure 100% PWM / 12V (mm H2O): 0.92- Noise level 100% PWM / 12V (dB(A)): 13.6
Tradeinn.com
Delivery: in United Kingdom
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£22.99
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Series be quiet! Silent Wings (fans)Compare using chart →
User reviews 2
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Quality has its price
18 January 2023 
The sound becomes slightly noticeable at 75% from a distance of ~1m in the closed Vinga Black Widow case (also known as Silentium PAX M70), with no vibration or annoying whine throughout the speed range. It starts at low voltages, mine starts at 14% PWM, but this depends on the motherboard, some might not start even at 20.
I don't recommend this to people who want just one expensive fan in the case just for the sake of it. Either get a few and build a quiet system or go for something simpler and don't throw money into... the wind lol.

If anyone starts adding comments like "I have $3 fans and they are quiet," know this – if you had something to compare with, you wouldn't say so. I've had both Arctic P/F and relatively cheap Noctua Redux. The first ones start knocking after a week, and the latter vibrate and hum like an airplane.

For those choosing between the regular version and High Speed, know that with the high-speed version you get Be but not Quiet. I don't know about the fourth generation, but the Silent Wings 3 High Speed were noisier compared to the regular Silent Wings 3 at the same speeds and the coils whined at low RPM in cooler PWM modes.
Quiet, VERY quiet, compared to Silent Wings 3 better (subjectively) air pressure
Skoda, you have to pay a lot of pennies for the quality
Serhii Kompaniiets: 
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wonderful model, really honored
24 December 2025 
The Silent Wings 4 120mm PWM is a fan chosen when controlled airflow and stable acoustics are needed. The airflow is dense with normal static pressure, making it equally suitable in a case, on a tower cooler, and on an AIO radiator. On a radiator, it effectively pushes through the fins, and inside a case, it really helps with temperature, rather than just creating a noisy background.

In terms of sound, it's even, without rattling, whistling, or parasitic tones. Even at higher speeds, the noise remains soft and not annoying. The three-phase motor with six coils performs well here — the fan doesn't fluctuate in speed and doesn't resonate.

The variable corner system is well-designed. Some corners are for classic screw mounting, while others are for screwless installation. Both options are anti-vibration, so it doesn't matter where it's placed — on a case or radiator, it doesn't add extra vibrations.

Overall, this is a versatile 120mm fan with an emphasis on stability, acoustics, and quality build. It’s not a "toy for RGB builds" but a solid working component for a quiet and well-cooled system.
Quiet, powerful, quality materials, top-of-the-line motor, braided cable
Zhodnikh
Reverse_rain: use be quiet! Silent Wings 4 120mm PWM more than year
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Price for be quiet! Silent Wings 4 140mm PWM
be quiet! Silent Wings 4 120mm PWM from £19.9912 offers
be quiet! Silent Wings 4 120mm PWM White from £19.991 offer
be quiet! Silent Wings 4 140mm PWM from £20.9912 offers
be quiet! Silent Wings 4 140mm PWM White from £22.992 offers
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Computer Cooling be quiet! Silent Wings 4 140mm PWM