---
product_id: 478823732
title: "be quiet! Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing"
brand: "be quiet!"
price: "AR$183880"
currency: ARS
in_stock: true
reviews_count: 8
category: "Be Quiet!"
url: https://www.desertcart.com.ar/products/478823732-be-quiet-silent-wings-pro-4-140mm-pwm-pc-case
store_origin: AR
region: Argentina
---

# 165.5 CFM airflow 36.8 dB(A) ultra-quiet max speed 2400 RPM max speed be quiet! Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing

**Brand:** be quiet!
**Price:** AR$183880
**Availability:** ✅ In Stock

## Summary

> 💨 Silence Meets Power: Cool Your Rig Like a Pro, Without the Noise!

## Quick Answers

- **What is this?** be quiet! Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing by be quiet!
- **How much does it cost?** AR$183880 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/478823732-be-quiet-silent-wings-pro-4-140mm-pwm-pc-case)

## 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

- • **Adaptive Speed Control:** Three-speed switch lets you tailor cooling from whisper-quiet to ultra-powerful in seconds.
- • **Built to Last & Look Sharp:** Up to 300,000 hours lifespan with sleek all-black design and premium sleeved PWM cable.
- • **Versatile Mounting Options:** Includes radiator corners, anti-vibration mounts, and plastic mounts for perfect fit and minimal noise.
- • **Virtually Silent Operation:** 6-pole motor with fluid-dynamic bearing ensures near-silent running even at max RPM.
- • **Precision Engineered Fan Blades:** Newly designed blades deliver unmatched airflow and pressure for high-end cooling performance.

## Overview

The be quiet! Silent Wings Pro 4 140mm PWM fan combines cutting-edge blade design and a 6-pole fluid-dynamic bearing motor to deliver exceptional airflow of 165.5 CFM at a whisper-quiet 36.8 dB(A). With a max speed of 2400 RPM and a convenient 3-speed switch, it adapts effortlessly to any cooling demand. Its versatile mounting options and premium build quality ensure long-lasting, vibration-free performance, making it the ultimate choice for high-end PC builds seeking silent, efficient cooling.

## Description

From the manufacturer Legendary Silence, Epic Performance and Features Quiet and Performant Operation Improved on all Levels The fan blades are what makes a fan. It is for this reason that the fan blades of Silent Wings Pro 4 140mm PWM 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. Optimised for High-End Performance Silent Wings Pro 4 140mm PWM makes for extraordinary air pressure and therefor, 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 allows the user to run even the most demanding applications. Speed Switch 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 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. For any Purpose 6-Pole Fan Motor 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. 3 Different Mounting Options Silent Wings Pro 4 140mm PWM 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. Fluid-Dynamic Bearing 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 Pro 4 140mm PWM. Magnificent Appearance in All Details Elegant Look The all-black design combined with a high-grade fan sticker makes Silent Wings Pro 4 140mm PWM a highlight in any system. The finely sleeved PWM cable perfectly rounds up the outer appearance of the fan. Not only does the PWM cable look great: its connector can also be plugged in and out with ease, making the fan an eye-catcher and user-friendly alike.

Review: Awesome fans - Awesome fans, well built and speedy selector is great. Extremely quiet and great airflow. Appearance is very stealthy and in all black which I like. Expensive but worth it.
Review: Quiet and effective - This fan has 3 levels. The highest level is too loud for me so I don't use it but the 2 fans still keep the temperature of my 10-core 3-4 GHz CPU under 80°C under sustained full load. The non-pro version would have sufficed for me.

## 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 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 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 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 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 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 | B0B74CP6X2 |
| Air Flow Capacity | 165.5 Cubic Feet Per Minute |
| Best Sellers Rank | 4,662 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 48 in Thermal Management Products 99 in Fans & Cooling |
| Brand | be quiet! |
| Compatible Devices | Radiator |
| Cooling Method | Air |
| Cooling method | Air |
| Country Of Origin | China |
| Customer Reviews | 4.7 out of 5 stars 533 Reviews |
| Global Trade Identification Number | 04260052188910 |
| Included Components | Case Fan, Manual |
| Item Dimensions L x W x H | 14L x 14W x 2.5H centimetres |
| Item Weight | 310 Grams |
| Manufacturer | be quiet! |
| Manufacturer Part Number | BL099 |
| Material | Polycarbonate |
| Max Rotational Speed | 2400 RPM |
| Model Number | BL099 |
| Noise Level | 36.8 Decibels |
| Number of Items | 32 |
| Number of Packs | 1 |
| Power Connector Type | 4-Pin |
| Power connector type | 4-Pin |
| Product Warranty | China |
| Product dimensions | 14L x 14W x 2.5H centimetres |
| Set Name | PWM Pro-Version |
| Unit Count | 1.0 count |
| Voltage | 12 Volts |
| Wattage | 3.04 watts |

## Product Details

- **Brand:** be quiet!
- **Compatible devices:** Radiator
- **Cooling method:** Air
- **Material:** Polycarbonate
- **Maximum rotational speed:** 2400 RPM
- **Noise level:** 36.8 Decibels
- **Power connector type:** 4-Pin
- **Product dimensions:** 14L x 14W x 2.5H centimetres
- **Voltage:** 12 Volts
- **Wattage:** 3.04 watts

## Images

![be quiet! Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing - Image 1](https://m.media-amazon.com/images/I/71oTv6qUmKL.jpg)
![be quiet! Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing - Image 2](https://m.media-amazon.com/images/I/61Tf43y4uML.jpg)
![be quiet! Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing - Image 3](https://m.media-amazon.com/images/I/619qBfL1udL.jpg)
![be quiet! Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing - Image 4](https://m.media-amazon.com/images/I/7147vOX3SZL.jpg)
![be quiet! Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing - Image 5](https://m.media-amazon.com/images/I/61Gyv4oYt3L.jpg)

## Available Options

This product comes in different **Color, Set** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome fans
*by S***Y on 5 July 2026*

Awesome fans, well built and speedy selector is great. Extremely quiet and great airflow. Appearance is very stealthy and in all black which I like. Expensive but worth it.

### ⭐⭐⭐⭐⭐ Quiet and effective
*by D***R on 21 August 2024*

This fan has 3 levels. The highest level is too loud for me so I don't use it but the 2 fans still keep the temperature of my 10-core 3-4 GHz CPU under 80°C under sustained full load. The non-pro version would have sufficed for me.

### ⭐ That is a tiny fan.
*by A***R on 27 July 2026*

it was the size of my hand. not at all what I thought

## Frequently Bought Together

- be quiet! Silent Wings Pro 4 140mm PWM High Speed 2400 RPM Premium Low Noise Cooling Fan | 4-Pin | BL099
- be quiet! Silent Wings 4 Cooling Fan | 120mm PWM high-Speed | White | BL115

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-08-13*