# Fan be quiet! SILENT WINGS 4 140mm PWM high-speed

**URL:** https://aio.lv/en/product--bequiet-bl097--4817938
**Data updated:** 2025-12-29 17:44 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** bequiet!
**Manufacturer code:** BL097
**EAN:** 4260052188897
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 22.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bequiet-bl097--4817938

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The be quiet! SILENT WINGS 4 is a 140mm PWM high-speed fan designed for optimal cooling performance. With a maximum rotational speed of 1900 RPM, it delivers an impressive airflow of 133.2 m³/h and a maximum air pressure of 2.36 mmH2O. The fan features a Fluid Dynamic Bearing (FDB) for quiet operation and longevity. Operating voltage ranges from 5 to 13.2 V, making it versatile for various setups. Its sleek black design fits seamlessly into any case.

## Long description

The be quiet! SILENT WINGS 4 140mm PWM high-speed is a 140 mm case fan engineered for a balance of low noise and high cooling performance. Featuring a 6-pole motor, Fluid Dynamic Bearing (FDB), and blades optimized for maximum airflow, this fan reaches up to 1900 RPM with an airflow of 133.2 m³/h and a maximum static pressure of 2.36 mmH2O. Its operating voltage range (5–13.2 V) and sleek black design make it suitable for high-end systems and various mounting locations.
Advantages
The combination of a 6-pole motor and Fluid Dynamic Bearing provides quiet operation and long service life while maintaining high rotational stability. Anti-vibration mountings reduce transfer of vibration to the chassis and the optimized blade geometry increases airflow and static pressure for demanding cooling tasks. The PWM control allows precise speed adjustment, and the compact 140 mm form factor integrates into most cases without visual disruption.
Suitable for
High-performance CPU or GPU cooling in desktop systems
Radiator and liquid-cooling loops requiring high static pressure
Case ventilation in compact and full-size enclosures
Systems where low noise and long-term reliability are important
Key specifications
Type: Fan
Diameter: 140 mm
Maximum speed: 1900 RPM
Airflow: 133.2 m³/h
Maximum air pressure: 2.36 mmH2O
Bearing: Fluid Dynamic Bearing (FDB)
Operating voltage: 5–13.2 V
Colour: Black
Weight: 0.22 kg
How to use
Install the fan into the case, radiator, or mounting bracket using the supplied anti-vibration mountings or appropriate screws, ensuring airflow direction matches the intended intake or exhaust configuration. Connect the PWM cable to a compatible 4-pin header on the motherboard or fan controller to enable automatic speed regulation. Adjust fan curves in BIOS or fan-control software if required to balance noise and cooling performance.
Usage recommendations
For radiator or restricted airflow setups, orient the fan so the blade geometry faces the heat source to maximise static pressure. Regularly check and clean the blades to maintain airflow and inspect anti-vibration mountings for secure fitment. Use PWM control to reduce noise during low-load periods while allowing full speed when higher cooling capacity is needed.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Type | Fan |
| Fan diameter | 140 mm |
| Noise level (high speed) | 29.3 dB |
| Rotational speed (max) | 1900 RPM |
| Maximum airflow | 78.4 cfm |
| Mean time between failures (MTBF) | 300000 h |
| Airflow | 133.2 m³/h |
| Maximum air pressure | 2.36 mmH2O |
| Bearing type | Fluid Dynamic Bearing (FDB) |
| Pulse-width modulation (PWM) support | Yes |
| Suitable location | Computer case |
| Quantity per pack | 1 pc(s) |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Certification | CE / ROHS / RU / UKCA / TÜV / WEEE |
| Fan connector | 4-pin |

### Weight & dimensions

| Feature | Value |
|---|---|
| Cable length | 0.5 m |
| Weight | 0.22 kg |
| Package weight | 390 g |
| Height | 25 mm |
| Width | 140 mm |
| Depth | 140 mm |
| Package depth | 206.5 mm |
| Package height | 31 mm |
| Package width | 156 mm |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 4.8 W |
| Rated current | 0.4 A |
| Maximum current | 0.4 A |
| Voltage | 5 - 13.2 |
| Rated voltage | 12 V |

### Packaging content

| Feature | Value |
|---|---|
| Number of screws | 4 |
| Screws included | Yes |
| Number of clips | 4 |

### Other features

| Feature | Value |
|---|---|
| Country of origin | China |

### Logistics data

| Feature | Value |
|---|---|
| Shipping (inner) case width | 317 mm |
| Shipping (inner) case length | 463 mm |
| Shipping (inner) case height | 388 mm |
| Shipping (inner) case gross weight | 13680 g |
| Products per shipping (inner) case | 32 pc(s) |
| Harmonized System (HS) code | 84733080 |

## FAQ

### How much does the Fan be quiet! SILENT WINGS 4 140mm PWM cost, and is it available for purchase?

The price is 26.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 218 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All bequiet! products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized bequiet! service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, fan diameter, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Fan be quiet! SILENT WINGS 4 140mm PWM?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/4817938/65744875_large.webp