---
product_id: 623321920
title: "Silent Wings Pro 4 140mm PWM White fan, optimized fan blades, extraordinary high performance, Speed Switch for changing maximum PWM speed, 6-pole fan motor, fluid-dynamic bearing"
brand: "be quiet!"
price: "R$835"
currency: BRL
in_stock: true
reviews_count: 5
category: "Be Quiet!"
url: https://www.desertcart.com.br/products/623321920-silent-wings-pro-4-140mm-pwm-white-fan-optimized-fan
store_origin: BR
region: Brazil
---

# 3-speed PWM switch 6-pole motor tech 97.4 CFM airflow Silent Wings Pro 4 140mm PWM White fan, optimized fan blades, extraordinary high performance, Speed Switch for changing maximum PWM speed, 6-pole fan motor, fluid-dynamic bearing

**Brand:** be quiet!
**Price:** R$835
**Availability:** ✅ In Stock

## Summary

> 🌬️ Silence Meets Supreme Cooling – Feel the breeze, not the buzz!

## Quick Answers

- **What is this?** Silent Wings Pro 4 140mm PWM White fan, optimized fan blades, extraordinary high performance, Speed Switch for changing maximum PWM speed, 6-pole fan motor, fluid-dynamic bearing by be quiet!
- **How much does it cost?** R$835 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/623321920-silent-wings-pro-4-140mm-pwm-white-fan-optimized-fan)

## Best For

- be quiet! enthusiasts

## Why This Product

- Trusted be quiet! brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Whisper-Quiet Power:** Ultra-low 36.8 dB noise keeps your workspace zen while delivering peak cooling.
- • **Adaptive Speed Control:** Seamlessly switch between medium, high, and ultra-high RPMs to match your cooling needs instantly.
- • **Vibration-Free Mounting:** Includes anti-vibration mounts and radiator corners for silent, stable installation in any build.
- • **Energy-Efficient Performance:** 6-watt 6-pole motor with fluid-dynamic bearing ensures long-lasting, low-power operation.
- • **Precision Airflow Engineering:** Optimized blade design and minimal blade-to-frame gap maximize air pressure for demanding setups.

## Overview

The be quiet! Silent Wings Pro 4 140mm PWM White fan combines cutting-edge blade design and a 6-pole motor to deliver exceptional airflow of 97.4 CFM at an ultra-quiet 36.8 dB noise level. Featuring a convenient 3-speed PWM switch, it adapts effortlessly to any cooling demand, from everyday tasks to high-end gaming rigs. Its fluid-dynamic bearing and anti-vibration mounts ensure whisper-quiet, energy-efficient operation, making it the ultimate choice for professionals seeking silent yet powerful PC cooling.

## Description

be quiet! Silent Wings Pro 4 140mm PWM White fan, optimized fan blades, extraordinary high performance, Speed Switch for changing maximum PWM speed, 6-pole fan motor, fluid-dynamic bearing: desertcart.co.uk: Computers & Accessories

Review: J’en avais déjà 4 et que dire à part silence rime avec performance ! Franchement, ça coûte un bras même en promo, mais ça vaut le coup pour qui veut un airflow incomparable dans un silence quasi impérial. En promo à 26€, ma foi c'est à peine 1€ de plus que le prix que j'ai eu pour les 4 autres d’occase. Que demader... Seul regret, l'obligation de cet ineffable sticker dégueu sur la partie montants. Quand tu montes en air entrant dans un aqua, c'est vraiment dommage.
Review: 静音ファンというとNoctuaが有名ですが、残念ながら白色のモデルがありません。 光らなくていいから白くて静かなケースファンを求めている人にはおすすめです。 静音性はNoctuaに迫るものがあり、手元で測定したところ中速モードのアイドル状態では38dbでした。 高速、超高速モードではうるさくなりますので静音性を求めるなら中速モードの使用をオススメします。

## Features

- The fan blades are what makes a fan. It is for this reason that the fan blades of Silent Wings Pro 4 140mm PWM White have been developed newly from scratch. The new blade arrangement enables a performance second to none for all possible operations. Be it in a case, on radiators or heat sinks.
- Silent Wings Pro 4 140mm PWM White makes for extraordinary air pressure and therefore, significantly increases the system’s performance. The decreased distance between the fan blades and the frame enables an extraordinarily high air pressure. By that, the Silent Wings Pro 4 140mm PWM White allows the user to run even the most demanding applications.
- The speed switch makes switching between medium, high-speed and ultra-high-speed of maximum RPM levels quick and easy. The Silent Wings Pro 4 140mm PWM White alters its application with a simple slide to the right. Medium-speed is suitable for any operation that requires regular cooling performance. High-speed lets the fan spin faster, providing more cooling power. Ultra-high-speed ultimately offers enough rpm to cool even the most demanding hardware in high-end PC builds.
- 6-pole fan motor with 3 phases for very low power consumption, less vibration and therefore quiet max. operation of 36.8dB(A). Equipped with this state-of-the-art technology the fan is virtually inaudible when operated in mid-speed.
- Silent Wings Pro 4 140mm PWM White has 3 mounting options in the scope of delivery. The pre-installed radiator corners are specially designed for radiators on which the incomparable performance of this high-end fan completely shines. On the other hand, for chassis use, the anti-vibration mounting is the first choice as they reduce vibrations to a minimum. The plastic mountings round up the scope.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CYCQ7G32 |
| Air Flow Capacity | 97.4 Cubic Feet Per Minute |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 77,684 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 115 in Laptop External Cooling Fans |
| Colour | White |
| Customer Reviews | 4.3 4.3 out of 5 stars (74) |
| Date First Available | 31 Mar. 2024 |
| Included components | 1 product |
| Item Package Quantity | 1 |
| Item Weight | 450 g |
| Item model number | BL119 |
| Manufacturer | be quiet! |
| Material | Plastic |
| Noise Level | 36.8 Decibels |
| Part number | BL119 |
| Size | 140mm |
| Style | Pro 140mm PWM |
| Wattage | 6 watts |

## Product Details

- **Air flow capacity:** 97.4 Cubic Feet Per Minute
- **Brand:** be quiet!
- **Compatible devices:** Desktop
- **Cooling method:** Air
- **Material:** Plastic
- **Maximum rotational speed:** 2400 RPM
- **Noise level:** 36.8 Decibels
- **Power connector type:** 4-Pin
- **Product dimensions:** 14L x 14W x 14H centimetres
- **Wattage:** 6 watts

## Images

![Silent Wings Pro 4 140mm PWM White fan, optimized fan blades, extraordinary high performance, Speed Switch for changing maximum PWM speed, 6-pole fan motor, fluid-dynamic bearing - Image 1](https://m.media-amazon.com/images/I/617UVJb8qqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***E on 7 December 2025*

J’en avais déjà 4 et que dire à part silence rime avec performance ! Franchement, ça coûte un bras même en promo, mais ça vaut le coup pour qui veut un airflow incomparable dans un silence quasi impérial. En promo à 26€, ma foi c'est à peine 1€ de plus que le prix que j'ai eu pour les 4 autres d’occase. Que demader... Seul regret, l'obligation de cet ineffable sticker dégueu sur la partie montants. Quand tu montes en air entrant dans un aqua, c'est vraiment dommage.

### ⭐⭐⭐⭐⭐ Review
*by A***ー on 4 September 2025*

静音ファンというとNoctuaが有名ですが、残念ながら白色のモデルがありません。 光らなくていいから白くて静かなケースファンを求めている人にはおすすめです。 静音性はNoctuaに迫るものがあり、手元で測定したところ中速モードのアイドル状態では38dbでした。 高速、超高速モードではうるさくなりますので静音性を求めるなら中速モードの使用をオススメします。

### ⭐⭐⭐⭐⭐ Review
*by G***M on 26 January 2025*

Le ho acquistate dopo un'attenta ricerca per sostituire le ventole montate in origine sul mio corsair da 360mm, troppo rumorose già in idle e fastidiose non appena era necessario raffreddare il mio ryzen 9 5900x. Le ho impostate al massimo della velocità in modo da avere tutto il range a disposizione ma credo che non ci arriveranno mai, sono silenziosissime e veramente performanti il flusso di aria che si sente fuoriuscire dal case a 1000 giri è superiore di quello delle originali al massimo ma queste non si sentono quasi. Ho impostato una curva che parte da 800 giri (inudibili) fino a 65 gradi poi sale fino a 1000 giri a 75gradi e in maniera molto ripida fino a 3000 giri a 90 gradi. Non ho mai visto temperature superiori a 75 gradi. Sono veramente entusiasta del risultato. Finalmente ho un pc silenzioso accanto.

## Frequently Bought Together

- be quiet! Silent Wings Pro 4 140mm PWM White fan, optimised fan blades, exceptionally high performance, speed switch for maximum PWM speed, 6-pole fan motor, fluid-dynamic bearing, BL119
- be quiet! Dark Rock Pro 5 Quiet Cooling CPU Cooler | Immensely High Airflow | 7 high-Performance Copper Heat Pipes | Speed Switch | Liquid Thermal Grease | BK036
- Samsung 990 PRO M.2 2000 GB PCI Express 4.0 VNAND MLC NVMe

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**Shop now:** [https://www.desertcart.com.br/products/623321920-silent-wings-pro-4-140mm-pwm-white-fan-optimized-fan](https://www.desertcart.com.br/products/623321920-silent-wings-pro-4-140mm-pwm-white-fan-optimized-fan)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-03*