be quiet!
be quiet! Pure Loop 3 240mm AIO Liquid CPU Cooler BW027
The be quiet! Pure Loop 3 240mm AIO Liquid CPU Cooler is a high-performance all-in-one water cooling system designed for users with moderately overclocked CPUs who want powerful cooling with minimal noise. It combines a capable PWM pump with two Pure Wings 3 fans and flexible tubing for straightforward installation and maintenance.
Why this product
Very high cooling performance
The system is engineered to handle demanding workloads and peak CPU performance, keeping temperatures low even during intensive applications.
Quiet operation across all speeds
Even at maximum fan speed the system operates at only 35.2 dB(A). The PWM pump is designed to be whisper-quiet while maintaining high performance.
Daisy-chained fans reduce cable clutter
All fans connect in series to a single motherboard header, eliminating the need for a separate fan hub and simplifying cable management.
Easy refilling and maintenance
An accessible refill port allows convenient top-ups if needed. Flexible sleeved tubes and simple mounting make installation straightforward.
- Radiator size240mm
- Fan count2 × 120mm
- Max noise level35.2 dB(A)
- Pump adjustable speed3000–5500 rpm
- Warranty3 years
- Socket compatibilityIntel 1851, 1700, 1200, 1151, 1150, 1155; AMD AM5, AM4
- SKUBEQ-5206
- EAN4260052193167
- Intel sockets 1851, 1700, 1200, 1151, 1150, 1155
- AMD sockets AM5, AM4
- Standard 120mm radiator mounting on case front, top or rear
- Requires adequate case clearance for 277 mm radiator width and 52 mm depth including fans
Best for
- Builders seeking quiet cooling without compromising performance
- Systems with modest overclocks that need reliable heat dissipation
- Users prioritizing low cable count and clean builds
- Those who want expandability through accessible refill ports
Trade-offs
- Extreme overclocking setups pushing CPU voltages to the limit — this cooler targets standard and light overclocks
- Builds requiring RGB lighting — the system has no lighting connector
- Very tight case configurations — the radiator assembly measures 277 × 120 × 52 mm
SUPREME AND QUIET COOLING
Pure Loop 3 240mm is the impressively high-performing and silent All-in-One water cooling unit for users with slightly overclocked systems.
VERY HIGH COOLING PERFORMANCE
Yes, it can run Crysis
With Pure Loop 3 240mm even the most demanding applications can be used reliably. Very high cooling power provides low temperatures even during periods of peak CPU performance.
SUPERIOR PUMP DESIGN
With state-of-the-art technology
A powerful PWM pump ensures the very high-performance of Pure Loop 3 240mm and is whisper-quiet at the same time.
PURE WINGS 3 FANS
A match made in heaven
2 Pure Wings 3 120mm PWM high-speed fans provide high air pressure to efficiently cool the liquid of the Pure Loop 3 240mm radiator. The fans also come with a "closed loop motor" function. This feature always keeps a steady fan speed, no matter the resistance – ideal for radiators. Despite their performance, Pure Wings 3 offer very quiet operation. Even at maximum speed, the fans operate at only 35.2dB(A).
DAISY CHAIN
No need for a fan hub
A water cooling system with a pump and 2 fans on top of the case fans can hit the maximum available on a motherboard easily. The daisy chain function of Pure Loop 3 240mm allows all fans to be connected in series. We provide fewer and shorter cables to help you achieve a cleaner look.
EASY AND INTUITIVE HANDLING
Pure Loop 3 240mm features flexible tubes, so installing it becomes a breeze. The refill port is easily accessible, making refilling this AiO an easy task, if and when it is required.
Fan
| Fan model | Pure Wings 3 120mm PWM high-speed |
|---|---|
| Number of fans | 2 |
| Maximum speed | 2100 rpm |
| Airflow at 100% PWM | 101.2 m³/h |
| Air pressure at 100% PWM | 2.41 mm H₂O |
| Noise level at 50% / 75% / 100% rpm | 15.4 / 27.3 / 35.2 dB(A) |
| Bearing technology | Rifle |
| Connector | 4-pin PWM |
Performance
| Radiator dimensions | 277 × 120 × 27 mm |
|---|---|
| Radiator material | Aluminum |
| Base material | Copper |
| Pump speed | 5500 rpm |
| Pump adjustable speed range | 3000–5500 rpm |
| Pump connector | 4-pin PWM |
| Tube length | 400 mm |
Acoustics & power
| Fan input power | 5.4 W |
|---|---|
| Fan rated voltage | 12 V |
| Fan input current | 0.13 A |
| Lifespan at 25°C | 80,000 hours |
Physical & installation
| Brand | be quiet! |
|---|---|
| Color | Black |
| Total weight | 1.020 kg |
| Cooling block dimensions | 68.5 × 93.4 × 44.9 mm |
| Socket compatibility Intel | 1851, 1700, 1200, 1151, 1150, 1155 |
| Socket compatibility AMD | AM5, AM4 |
| Refill port | Yes |
| Thermal grease | Included |
| Mounting set | Intel, AMD |
| Adapter cables included | 4-Pin PWM extension |
| Warranty | 3-year manufacturer's warranty |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.