be quiet! Pure Loop 3 240mm Liquid CPU Cooler

The Pure Loop 3 240mm delivers high-performance liquid cooling with minimal noise for users running consumer CPUs with moderate overclocking. This all-in-one water cooling solution combines efficient heat dissipation with be quiet!'s signature silent operation philosophy.

Advanced Cooling Technology

At the core of the Pure Loop 3 is a state-of-the-art PWM pump featuring a 6-pole motor design that minimizes vibrations while maintaining optimal coolant flow. The pump operates between 3000-5500 RPM and connects via standard 4-pin PWM for precise speed control. The 240mm aluminum radiator with copper base efficiently transfers heat away from your CPU, supporting all mainstream Intel (1851/1700/1200/1151/1150/1155) and AMD (AM5/AM4) sockets.

Pure Wings 3 High-Speed Fans

Two Pure Wings 3 120mm PWM high-speed fans deliver 59.6 CFM airflow at maximum speed while maintaining remarkably quiet operation. The rifle bearing fans reach up to 2100 RPM, generating 2.41mm H2O static pressure for effective heat dissipation through dense radiator fins. Noise levels range from just 15.4 dB(A) at 50% speed to 35.2 dB(A) at full throttle. The daisy-chained PWM configuration simplifies cable management and reduces motherboard header usage.

User-Friendly Design Features

The Pure Loop 3 includes an accessible refill port for convenient coolant maintenance, extending the cooler's operational lifespan. Flexible sleeved tubes measuring 400mm in length provide installation flexibility across various case layouts. The mounting system accommodates both Intel and AMD platforms with straightforward installation procedures. Thermal paste comes pre-included, and a 4-pin PWM extension cable is provided for routing convenience.

Technical Specifications Summary

The complete assembly measures 277 x 120 x 52mm including fans, with the cooling block dimensions of 68.5 x 93.4 x 44.9mm fitting most CPU socket areas. Total weight is 1.020kg. Each fan draws 0.13A input current with 5.4W power consumption, rated for 80,000 hours lifespan at 25°C. The unit carries CE, UKCA, and FCC safety certifications along with RoHS, WEEE, and Triman environmental compliance.

German Engineering and Support

Designed and quality-controlled in Germany, the Pure Loop 3 reflects be quiet!'s commitment to reliable cooling solutions. The product includes a comprehensive 3-year manufacturer's warranty with international hotline support available in German, French, and English. Multi-language documentation supports CN, DE, EN, ES, FR, JP, PL, RU, and TW users.

be quiet! (BW027) 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. Pure Loop 3 240mm is for all the purists out there that like their cooling power subtle and unagitated.

Very high cooling performance for all consumer CPUs
State-of-the-art PWM pump with 6-pole motor reduces vibrations to an absolute minimum
2 Pure Wings 3 120mm PWM high-speed fan offer high static pressure with very quiet Operation
Daisy-chained PWM fans for maximum convenience
Flexible sleeved tubes and a simple mounting ensure easy handling
Easy-to-access refill port for convenient handling
Neat design language with elegant looks and subtle details
3-year manufacturer's warranty
Product conception, design and quality control in Germany

Specifications

General data

ModelPure Loop 3 | 240mm
Color option- N/A
Dimensions radiator, incl. fan (H x W x D), (mm)277 x 120 x 52
Dimensions cooling block (H x W x D), (mm)68.5 x 93.4 x 44.9
Total weight (kg)1.020
Socket compatibility Intel1851 / 1700 / 1200 / 1151 / 1150 / 1155
Socket compatibility AMDAM5 / AM4
Noise level (dB(A)) at 50% / 75% /100% rpm15.4 / 27.3 / 35.2
Number of fans2
Lighting connector- No
Tube length (mm)400
Refill portYes

Pump specifications

Pump speed (rpm)5500
Pump adjustable (rpm)3000 - 5500
Pump connector4-pin PWM

Radiator specifications

Dimensions (L x W x H), (mm)277 x 120 x 27
Radiator material / finishAluminum
Base material / finishcopper

Fan specifications

Fan modelPure Wings 3 120mm PWM high-speed
Fan dimensions (mm)120 x 25 x 120
Speed at 100% PWM (rpm)2100
Airflow at 100% PWM / 12V (cfm / m3/h)59.6 / 101.2
Air pressure at 100% PWM / 12V (mm H2O)2.41
Bearing technologyRifle
Motor technology4-pole
Rated voltage (V)12
Input current (A)0.13
Safety current (A)0.45
Input power (W)5.4
Connector4-pin PWM
Cable length (mm)30 / 90mm + daisy chain
Lifespan (h / 25°C)80,000

Accessories

Thermal grease (Type)Included
Mounting setIntel, AMD
Adapter cables4-Pin PWM extension
Bottle of coolant (ml)- No
ARGB controller with SATA cable- No
ARGB-PWM-Hub- No
User manual languagesCN, DE, EN, ES, FR, JP, PL, RU, TW

Safety certifications

ApprovalsCE, UKCA, FCC

Environmental directives

RoHSYes
WEEEYes
TrimanYes

Service

Warranty (Years)3
International hotline / free of chargeYes/ DE, FR, US

Logistics data

Dimensions, package (L x W x H), (mm)321 x 240 x 140
Gross weight, package (kg)1.75
Pieces per packaging unit8
Dimensions, shipping box (L x W x H), (mm)658 x 296 x 508
Gross weight, shipping box (kg)15.52

• Product Type: Liquid CPU Cooler
• Radiator Colour: Black
• Max Fan Speed: 2100RPM
• Radiator Size: 240mm
• LED Colour: None