🌪️ Silence meets power — cool your system without the noise!
The be quiet! Silent Wings Pro 4 140mm PWM fan delivers ultra-high-speed cooling up to 2400 RPM with an optimized blade design and funnel-shaped frame for maximum air pressure. Its 6-pole motor and fluid-dynamic bearing ensure smooth, vibration-free, and virtually silent operation, making it the premium choice for professional-grade radiator and heat sink cooling.
| Product Dimensions | 5.51"L x 0.98"W x 5.51"H |
| Brand | be quiet! |
| Power Connector Type | 4-Pin |
| Voltage | 12 Volts |
| Wattage | 3.04 watts |
| Cooling Method | Fan |
| Compatible Devices | Radiator |
| Noise Level | 22.5 dB |
| Material | Copper |
| Maximum Rotational Speed | 2400 RPM |
| Air Flow Capacity | 97.4 Cubic Feet Per Minute |
| Global Trade Identification Number | 04260052188910 |
| Manufacturer | be quiet! |
| Number of Items | 1 |
| Series | BL099 |
| Item model number | BL099 |
| Item Weight | 10.9 ounces |
| Item Dimensions LxWxH | 8.13 x 6.15 x 1.22 inches |
| Computer Memory Type | DIMM |
| ASIN | B0B74CP6X2 |
| Date First Available | July 21, 2022 |
G**O
Great fans, new set for my bigger case.
Great fans, I needed more fans for my new case, and I already have this brand in. I wanted to control the speed of my fans to make the system quiet, and these really are quiet at 900 rpm. The cooling performance doesn't seem to be affected by running the fans this slow, and of course you can change the curves to make them go crazy if the system really needs it. Kind of pricey fans, but they work as advertised.
J**B
Don't hesitate
BeQuiet are the only fans I'll ever buy. Great airflow, quiet and solid! A little pricey but you get what you pay for.
A**R
⭐⭐⭐⭐⭐ King of 140mm Fans - be quiet! Silent Wings Pro 4
After extensive research, I can confidently say the be quiet! Silent Wings Pro 4 140mm fan is a top contender in its size class. I scoured the market looking for the best balance of performance and noise levels, and this fan consistently came out on top. The only real competition I found was the Noctua NF-A14, but that's a significantly older model that hasn't seen revisions in quite some time. While the NF-A14 is a strong performer, the Silent Wings Pro 4 offers more modern features and refinements.My advice to anyone considering a 140mm fan: definitely check if Noctua has released a new revision of the NF-A14 (similar to their updated NF-A12). If they have, compare the two. However, as of right now, the be quiet! Silent Wings Pro 4 is the clear winner in the 140mm category. It delivers exceptional performance with minimal noise, making it the perfect choice for demanding builds where airflow and acoustics are equally important. Don't waste your time searching – if you need a 140mm fan, this is the one to get.
N**.
Cool and quiet
Amazingly quiet. Case is very cool. All my fans/cpu cooler are bequiet. Love the brand.
M**E
Pricey, but worth the investment
Definitely the best fans I've ever purchased. Solid, high build quality, and they move a lot of air.
A**R
Worth the money
Ordered 4. Great temps and very quiet. I use High modes for my 140s and the highest for my rear 120
D**K
Incredibly quiet fan
I used Silent Wings 3 on my last computer build in 2018 and was very happy with them. In 2024 I did my latest build using the Silent Wings Pro 4 fans (7 of them) and it's really hard to hear them most of the time. I do hear them kick in for a few seconds at a time occaisionally when heavy loads hit the cpu. I highly recommend!
T**.
Best fans ever!
I ordered 4 of these and when package was delivered I was surprised by the weight just picking box up. When I took these fans out I was blown away by the quality just holding them. After installing them these are probably the fans I'm going to go with from now on. They're just fantastic. They are super quiet even at the highest RPMs which are also really high for a 140mm fan at 2400rpm.
Trustpilot
3 weeks ago
2 months ago
