be quiet! Silent Loop 3 420mm Intel/AMD Liquid CPU Cooler BW026

Introducing the be quiet! Silent Loop 3 420mm Intel/AMD Liquid CPU Cooler BW026 — a premium all-in-one cooling solution engineered to deliver exceptional thermal performance while keeping your system whisper-quiet. Designed by be quiet!, a brand synonymous with silent PC components, the Silent Loop 3 blends advanced thermal engineering, robust build quality, and refined aesthetics to satisfy enthusiasts, content creators, and overclockers who demand both cooling headroom and near-silent operation. The expansive 420mm radiator, trio of high-efficiency 140mm fans, and a next-generation pump architecture come together to tame the hottest CPUs from Intel and AMD without calling attention to themselves.

Benefits

• Virtually silent operation: Enjoy a dramatic reduction in audible noise thanks to the dampened, low-turbulence pump and three Silent Wings 4 PWM fans, engineered to deliver high airflow with minimal sound.
• Superior heat management: The large 420mm radiator and highly engineered cooling block ensure efficient heat evacuation, keeping CPU temperatures in check during sustained heavy loads and overclocking sessions.
• Broad platform compatibility: Built to support a comprehensive range of sockets — including Intel LGA 1151, 1200, 1700, 1851 and AMD AM4, AM5, sTR4/sTRX4, sTR5 — giving you flexibility across generations and high-end desktop platforms.
• Refined aesthetics and lighting: Subtle, controllable RGB lighting adds a premium visual accent that integrates cleanly into modern builds without overpowering the system’s look.
• User-focused installation and reliability: Thoughtful engineering such as the screwless cooling block design and robust mounting system speeds up installation and enhances contact with CPU hot spots for consistent thermal performance.

Key features

• Feature — Highly engineered cooling block design

The cooling block features a 1,800 mm² fin area optimized to cover all CPU hot spots and maximize heat transfer. Its innovative screwless construction improves contact efficiency and streamlines installation while ensuring consistent thermal conductivity across the die.

• Feature — Powerful 3-chamber pump with advanced damping

The Silent Loop 3’s 3-chamber pump architecture dramatically reduces internal turbulence and vibration, providing smoother coolant flow and lower acoustic footprint. The pump is dampened and adjustable, driven by a 6-pole motor for reliable, low-noise operation that maintains high performance even under heavy thermal load.

• Feature — Triple Silent Wings 4 140mm PWM fans

Three high-performance 140mm fans deliver the necessary airflow (75 CFM+) to fully exploit the radiator’s surface area. Designed to produce strong static pressure and governed by PWM control, these fans balance cooling power and silence with optimized blade geometry and premium bearings to keep noise levels low (30–35 dBA under load).

• Feature — Massive 420mm radiator for extreme dissipation

The extended-length 420mm radiator increases coolant surface area and fin density to extract heat efficiently from high-TDP CPUs and multi-core workstation processors. Its size makes it ideal for thermal headroom in overclocked rigs and sustained workstation workloads while maintaining consistent cooling performance.

• Feature — Broad socket compatibility and integrated RGB

Ready for a wide array of Intel and AMD platforms, the Silent Loop 3 supports everything from mainstream to high-end desktop sockets (LGA 1151 / 1200 / 1700 / 1851 and AM4 / AM5 / sTR4 / sTRX4 / sTR5). Integrated RGB lighting provides customizable illumination to match your system theme and pairs seamlessly with common motherboard control software for synchronized effects.

Summary

The be quiet! Silent Loop 3 420mm (BW026) is engineered for users who refuse to compromise: maximum cooling capacity, meticulous acoustic optimization, refined build details, and contemporary aesthetics in a single, turnkey package. With a large 420mm radiator, advanced 3-chamber pump design, Silent Wings 4 140mm PWM fans, and broad socket support, this cooler brings industry-leading thermal control to high-performance gaming rigs, creative workstations, and overclocked systems — all while keeping the noise to a minimum. Elevate your cooling solution with the Silent Loop 3 and experience powerful, unobtrusive thermal management built by be quiet!.