---
product_id: 732943018
title: "be quiet! High End Model with Speed Switching Function SILENT WINGS PRO 4 5.5 inches (140 mm) PWM BL099"
brand: "be quiet!"
price: "€ 8.75"
currency: EUR
in_stock: false
reviews_count: 2
url: https://www.desertcart.sk/products/732943018-be-quiet-high-end-model-with-speed-switching-function-silent
store_origin: SK
region: Slovakia
---

# Up to 2,400 RPM speed control Max airflow 97.41 CFM Ultra-quiet max 36.8 dBA noise be quiet! High End Model with Speed Switching Function SILENT WINGS PRO 4 5.5 inches (140 mm) PWM BL099

**Brand:** be quiet!
**Price:** € 8.75
**Availability:** ❌ Out of Stock

## Summary

> 🖤 Silence Meets Power: The Ultimate Cooling Upgrade You Can't Afford to Miss

## Quick Answers

- **What is this?** be quiet! High End Model with Speed Switching Function SILENT WINGS PRO 4 5.5 inches (140 mm) PWM BL099 by be quiet!
- **How much does it cost?** € 8.75 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/732943018-be-quiet-high-end-model-with-speed-switching-function-silent)

## 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:** Engineered for longevity with a 300,000-hour lifespan at optimal temperatures.
- • **Powerful Airflow:** Maximize system cooling with an impressive 97.41 CFM air delivery.
- • **Versatile Mounting Kit:** Includes rubber and hard plastic mounts plus push pins for secure, vibration-free installation.
- • **Whisper-Quiet Operation:** Experience near-silent airflow with advanced Fluid Dynamic Bearing technology.
- • **Precision Speed Switching:** Seamlessly toggle between 3 optimized fan speeds for tailored cooling performance.

## Overview

The be quiet! SILENT WINGS PRO 4 is a premium 140mm PWM fan featuring three speed levels up to 2,400 RPM, delivering a maximum airflow of 97.41 CFM while maintaining ultra-low noise levels at 36.8 dBA. Equipped with a fluid dynamic bearing for durability, it boasts a 300,000-hour lifespan and comes with versatile mounting accessories for easy installation, making it the go-to choice for professionals seeking silent yet powerful PC cooling.

## Description

Full description not available

## Features

- Size: 5.5 x 5.5 x 1.0 inches (140 x 140 x 25 mm); Weight: 9.1 oz (258 g); Cable Length: 19.7 inches (50
- Fan Speed: Up to 2,400 rpm (3 levels of medium speed, 1,100 rpm, high speed, 1,900 rpm, ultra-high speed, 2,400 rpm); Air Flow: 97.41 CFM (max); Noise: 36.8 dBA (max); Static Pressure: 3.64 mmH2O (max)
- Drive Voltage: DC 12 V (5 - 13.2 V); Power Consumption: 6 W; Rated Current: 0.5 A
- Bearing: Fluid Dynamic Bearing (FDB). Product Life: 300,000 hours (25 degrees Celsius)
- Accessories: Fan corner for radiator, rubber and hard plastic mount, push pin, fan screw, manual (English language not guaranteed)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | be quiet! |
| Manufacturer | be quiet! |
| Product Dimensions | 14 x 2.5 x 14 cm; 310 g |
| Item model number | BL099 |
| Color | Black |
| Item dimensions W x H | 14 x 2.5 x 14 cm |
| Computer Memory Type | DIMM |
| Voltage | 12 Volts |
| Wattage | 3.04 W |
| Are Batteries Included | No |
| Item Weight | 310 g |

## Product Details

- **Product Dimensions:** 14L x 2.5W x 14H cm
- **Brand:** be quiet!
- **Power Connector Type:** 4-Pin
- **Voltage:** 12 Volts
- **Wattage:** 3.04 W
- **Cooling Method:** Fan
- **Compatible Devices:** Laptop
- **Noise Level:** 36.8 Decibels
- **Material:** Plastic Rubber
- **Maximum Rotational Speed:** 2400 RPM

## Images

![be quiet! High End Model with Speed Switching Function SILENT WINGS PRO 4 5.5 inches (140 mm) PWM BL099 - Image 1](https://m.media-amazon.com/images/I/71oTv6qUmKL.jpg)
![be quiet! High End Model with Speed Switching Function SILENT WINGS PRO 4 5.5 inches (140 mm) PWM BL099 - Image 2](https://m.media-amazon.com/images/I/61Tf43y4uML.jpg)
![be quiet! High End Model with Speed Switching Function SILENT WINGS PRO 4 5.5 inches (140 mm) PWM BL099 - Image 3](https://m.media-amazon.com/images/I/619qBfL1udL.jpg)
![be quiet! High End Model with Speed Switching Function SILENT WINGS PRO 4 5.5 inches (140 mm) PWM BL099 - Image 4](https://m.media-amazon.com/images/I/7147vOX3SZL.jpg)
![be quiet! High End Model with Speed Switching Function SILENT WINGS PRO 4 5.5 inches (140 mm) PWM BL099 - Image 5](https://m.media-amazon.com/images/I/61Gyv4oYt3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A bit expensive but very quiet
*by デ***エ on January 1, 2025*

I was looking to low down the noise of my computer and i am very happy with this fans

### ⭐⭐⭐⭐⭐ best performance
*by A***ー on April 13, 2024*

I love it. 140mm case fan with the best performance.

## 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.sk/products/732943018-be-quiet-high-end-model-with-speed-switching-function-silent](https://www.desertcart.sk/products/732943018-be-quiet-high-end-model-with-speed-switching-function-silent)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-19*