be quiet! SILENT WINGS PRO 4 140mm PWM Fan
£33.98
In stock
SILENT WINGS PRO 4 140mm PWM Fan
Next-generation performance with virtually inaudible operation
See It In Action
Engineered for Excellence
IMPROVED ON ALL LEVELS
Newly developed fan blade arrangement enables performance second to none for all possible operations—in a case, on radiators, or heat sinks.
OPTIMIZED FOR HIGH-END PERFORMANCE
Decreased distance between fan blades and frame enables extraordinarily high air pressure, allowing users to run even the most demanding applications.
SPEED SWITCH
Three speed options—medium, high-speed, and ultra-high-speed—for any application, easily adjustable with a simple slide switch.
6-POLE FAN MOTOR
6-pole motor with 3 phases delivers low power consumption, reduced vibration, and quiet max operation of 36.8 dB(A)—virtually inaudible at mid-speed.
Technical Data
140mm
PWM (4-pin)
36.8 dB(A)
6-pole, 3-phase
Fluid Dynamic Bearing (FDB)
Up to 300,000 hours
Built for Professionals
The Silent Wings Pro 4 140mm PWM combines cutting-edge engineering with premium materials, delivering exceptional cooling performance while maintaining virtually silent operation for the most demanding PC builds.
3 Different Mounting Options
Includes pre-installed radiator corners, anti-vibration mounting for chassis use, and plastic mountings for versatile installation.
Fluid-Dynamic Bearing
Advanced FDB technology enables a super long fan life of up to 300,000 hours while significantly reducing vibrations.
Elegant Look
All-black design with high-grade fan sticker and finely sleeved PWM cable makes this fan a highlight in any system.
General Specifications
Connectivity & Cables
Physical & Build
Other
Cooling & Fan Support
Compliance & Service
Fan Specifications
Logistics & Packaging
Compliance & Logistics
| Manual | |
| Datasheet | |
| Dimensions | JPG |
About be quiet!
be quiet! is a premium German PC hardware brand, recognised worldwide for designing high-performance components with an uncompromising focus on silence.
Founded in Germany, be quiet! has earned the trust of enthusiasts, gamers, creators and system builders the world over through exceptional build quality, reliability and near-silent operation.
German Engineering
Premium Components
Long Warranties
Designed in Germany
Every be quiet! product is engineered and quality-controlled in Germany, with meticulous attention to acoustics, airflow, thermals and long-term durability.
That engineering-first approach means each one performs exactly as intended: quietly and efficiently.
What be quiet! is known for
- Ultra-quiet, high-efficiency power supplies
- High-performance CPU coolers with silent operation
- Low-noise PC cases optimised for airflow and reduced vibration
- Premium fans engineered for strong airflow at minimal noise
Trusted by enthusiasts and professionals
be quiet! hardware is widely used in gaming PCs, professional workstations, content-creation systems, and quiet home and office builds.
As an authorised UK service centre, we supply genuine be quiet! products backed by full manufacturer warranty and local UK support.
Shipping & Delivery Information
Dispatch cut-off: 2:00pm
UK shipping only
- 🚚
UK mainland: Free standard next-day / 2-day delivery (subject to courier terms). - ⏱️
Same-day dispatch: Order before 2:00pm Monday–Friday. - 📍
Extended areas: Highlands, NI, ROI & Channel Islands typically 2–5 working days. - 🛑
No collection: We ship orders only.
Shipping Only
Please note that we do not offer collections. All orders are shipped via our courier partners.
Delivery services are subject to courier availability and local conditions.
Weekend Orders
Orders placed after 2:00pm on Friday or during the weekend
are processed on the next working day (normally Monday).
Bank holidays may also affect dispatch and delivery times.
UK Delivery
Free standard next-day / 2-day to UK mainland (subject to courier terms)
- ✅Free standard delivery on all orders
- 📦UK mainland only for next-day / 2-day services
- 🕑Cut-off: order before 2:00pm (Mon–Fri) for same-day dispatch
Extended Delivery Areas
Typically 2–5 working days
- 🏔️Scottish Highlands
- 🇬🇧Northern Ireland
- 🇮🇪Republic of Ireland
- 🏝️Channel Islands
Delivery times can vary depending on courier availability and local conditions.
International Shipping
We do not ship outside the UK
Delivery times are estimates and may be affected by courier delays outside of our control.
