Water Cooler BeQuiet! Pure Loop 240

be quiet! PURE LOOP 3 240mm – Efficient All-in-One Liquid Cooling

The be quiet! PURE LOOP 3 240mm is an all-in-one liquid CPU cooler designed to provide effective processor cooling in systems that support a 240mm radiator configuration. It combines a 240mm radiator measuring 277 × 120 × 27mm with two 120mm fans to create a compact liquid-cooling solution for modern desktop PCs. The cooler uses a dedicated 3,500 RPM pump to circulate coolant through the system, while the included fans can operate at speeds of up to 2,100 RPM. Both the cooling hardware and visual design are suited to modern gaming and performance-focused builds, with ARGB lighting adding configurable illumination. With support for multiple Intel and AMD CPU sockets, the PURE LOOP 3 240mm provides a flexible platform for custom PC configurations.

240mm Radiator Configuration

The PURE LOOP 3 240mm uses a 240mm radiator with dimensions of 277 × 120 × 27mm, providing the central heat-dissipation surface for the liquid cooling loop. Its 240mm format is designed around two 120mm fans, making it a practical choice for cases that support 240mm radiator mounting while offering less installation space than larger 360mm solutions. The radiator dimensions are particularly important when planning a custom PC, as available mounting locations and internal clearance should be checked before installation. The combination of the 240mm radiator and liquid cooling system provides a dedicated thermal-management platform for compatible processors, while the relatively compact radiator format allows the PURE LOOP 3 240mm to be considered for a wider range of PC cases and system layouts.

Dual 120mm Fans

Airflow through the radiator is provided by 2 × 120mm fans, each capable of reaching speeds of up to 2,100 RPM. The fans use Fluid Dynamic Bearings, providing the specified bearing technology for smooth fan operation. The dual-fan arrangement covers the 240mm radiator surface and provides the airflow required to transfer heat from the radiator into the surrounding air. With a maximum fan speed of 2,100 RPM, the cooling system can provide increased airflow when the processor requires additional thermal management. The standard 120mm fan format also makes the cooler compatible with cases designed around common 240mm radiator mounting configurations. This combination gives the PURE LOOP 3 240mm a balanced design focused on radiator airflow while maintaining the compact dimensions expected from a 240mm all-in-one liquid cooler.

3,500 RPM Pump

The PURE LOOP 3 240mm incorporates a dedicated 3,500 RPM pump as part of its all-in-one liquid cooling system. The pump circulates coolant through the cooling loop, transferring heat away from the processor and towards the radiator where it can be dissipated by the two 120mm fans. This liquid-based approach separates the heat-transfer stage from the radiator airflow stage, creating a complete cooling system within the integrated AIO design. The specified 3,500 RPM pump speed works alongside the 240mm radiator and dual-fan configuration to provide the circulation required for the cooler to operate. For PC builders, this provides a straightforward liquid-cooling solution without the need to assemble an individual pump, radiator and tubing system, while retaining the advantages of a dedicated 240mm radiator format.

ARGB Lighting and Modern Design

The be quiet! PURE LOOP 3 240mm features ARGB lighting, allowing the cooler to contribute to the visual design of a modern gaming or enthusiast PC. Addressable RGB illumination can complement other compatible components and lighting elements within the system, particularly in builds where the internal hardware is visible through a tempered-glass side panel. The ARGB feature adds a visual element without changing the cooler's primary role as a liquid CPU cooling solution. Combined with the 240mm radiator and two 120mm fans, the PURE LOOP 3 offers a balance between cooling hardware and modern PC aesthetics. Its compact radiator dimensions also make it suitable for configurations where a 240mm liquid cooler is preferred over a larger 360mm radiator due to the available space or overall system design.

Intel and AMD CPU Compatibility

The PURE LOOP 3 240mm supports a broad selection of Intel and AMD desktop CPU sockets, including Intel LGA1851, LGA1700, LGA1200 and LGA115x, alongside AMD AM5 and AM4. This compatibility allows the cooler to be used across multiple desktop platforms, provided the PC case has suitable support for its 240mm radiator configuration. The combination of broad socket support, a 240mm radiator, two 120mm fans, a 3,500 RPM pump and ARGB lighting makes this cooler suitable for a variety of custom gaming PCs and performance-oriented desktop systems. When planning installation, builders should ensure the selected case provides the required radiator mounting space and clearance. With its compact 240mm format and support for both major desktop CPU platforms, the PURE LOOP 3 240mm provides a versatile foundation for liquid-cooled PC builds.