---
product_id: 478823732
title: "Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing"
brand: "be quiet!"
price: "B/.120"
currency: PAB
in_stock: true
category: "Be Quiet!"
url: https://www.desertcart.com.pa/products/478823732-silent-wings-pro-4-140mm-pwm-pc-case-fan-fluid
store_origin: PA
region: Panama
---

# 165.5 CFM airflow 36.8 dB(A) ultra-quiet max speed 6-pole motor, 3 phases Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing

**Brand:** be quiet!
**Price:** B/.120
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing by be quiet!
- **How much does it cost?** B/.120 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/478823732-silent-wings-pro-4-140mm-pwm-pc-case-fan-fluid)

## 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

- • **Built to Last:** Fluid-dynamic bearing guarantees up to 300,000 hours of reliable, maintenance-free operation.
- • **Adaptive Speed Control:** Effortlessly switch between medium, high, and ultra-high RPM to match your system’s demands.
- • **Vibration-Free Mounting:** Includes anti-vibration mounts and radiator corners for stable, noise-free installation.
- • **Whisper-Quiet Operation:** Advanced 6-pole motor and fluid-dynamic bearing ensure near-silent running even at max speed.
- • **Precision Engineered Blade Design:** New blade arrangement delivers unmatched air pressure for superior cooling performance.

## Overview

The be quiet! Silent Wings Pro 4 140mm PWM fan combines cutting-edge blade design and a 6-pole motor to deliver exceptional airflow of 165.5 CFM at ultra-quiet noise levels of just 36.8 dB(A). With a versatile speed switch and anti-vibration mounts, it adapts seamlessly to any high-performance PC build, ensuring long-lasting, whisper-quiet cooling for up to 300,000 hours.

## Description

Optimized fan blades deliver exceptional air pressure and cooling. Speed switch for adjustable max PWM speed. Ideal for cases, radiators, and heatsinks.

## 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 | 10,953 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 115 in Thermal Management Products 222 in Fans & Cooling |
| Brand | be quiet! |
| Compatible Devices | Radiator |
| Cooling Method | Air |
| Country Of Origin | China |
| Customer Reviews | 4.7 4.7 out of 5 stars (543) |
| 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 Highlight | Speed Switch for Changing Maximum PWM Speed, 6-Pole Fan Motor, Less vibration and virtually inaudible operation |
| 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 |
| Product Warranty | China |
| 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

![Silent Wings Pro 4 140mm PWM PC Case Fan, Fluid-Dynamic Bearing - Image 1](https://m.media-amazon.com/images/I/71oTv6qUmKL.jpg)

## Available Options

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

## 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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**Shop now:** [https://www.desertcart.com.pa/products/478823732-silent-wings-pro-4-140mm-pwm-pc-case-fan-fluid](https://www.desertcart.com.pa/products/478823732-silent-wings-pro-4-140mm-pwm-pc-case-fan-fluid)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-10-13*