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be quiet!

Part #: BK043

Item Code: COBEQ00203

be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler

be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler
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  • be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler
  • be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler
  • be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler
  • be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler
  • be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler
  • be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler
be quiet!

Part #: BK043

Item Code: COBEQ00203

be quiet! PURE ROCK PRO 3 LX Black CPU Air cooler

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  • 2 Year
    $9.75
  • 3 Year
    $11.05

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1 Available at Waterloo, ON

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For Quebec residents: Please refer to the Availability Guarantee disclosure in the Warranty and Return section below.

1. How can I make my PC quieter?

A: Use high-quality PWM fans, create a custom fan curve in BIOS, keep good airflow (so fans don’t need to spin fast), and clean dust regularly.

2. Are bigger fans quieter?

A: Yes. 140mm fans usually move the same amount of air as 120mm fans at lower RPM, which means less noise.

be quiet! SILENT LOOP 3 240mm AIO Liquid CPU Cooler

The be quiet! SILENT LOOP 3 240mm is a premium all-in-one (AIO) liquid CPU cooler designed to deliver strong thermal performance with whisper-quiet operation. It’s ideal for gaming PCs, performance builds, and systems where both cooling efficiency and low noise are priorities.

What This AIO Cooler Offers

  • Efficient 240 mm Radiator Cooling
    With a 240 mm radiator and two high-performance 120 mm fans, this cooler excels at heat dissipation — keeping your CPU temperatures low during intense workloads like gaming, rendering, or streaming.

  • Very Quiet Operation
    As part of be quiet!’s “Silent Loop” line, this model prioritizes noise-optimized performance. Both the fans and the pump are engineered to run quietly even under load, making it a great fit for systems where silence matters.

  • All-in-One Simplicity
    This liquid cooler comes pre-filled and sealed, so there’s no need to deal with custom tubing or fluid maintenance. Installation is straightforward: mount the radiator and pump block, connect the fittings, and you’re good to go.

  • High-Quality Components
    You get premium fans and a refined pump design that work together to provide stable, efficient cooling while minimizing vibration and sound.

  • Wide Compatibility
    Supports most modern Intel and AMD CPU sockets, so you can use it with a wide range of systems without worrying about compatibility.

Specifications Summary

  • Cooler Type: All-in-One (AIO) liquid CPU cooler

  • Radiator Size: 240 mm

  • Fans: 2 × 120 mm

  • Design Focus: Quiet, high-performance liquid cooling

  • Compatibility: Modern Intel & AMD CPU sockets

  • Ideal For: Gaming PCs, performance systems, quiet builds

Why You’ll Like It

The be quiet! SILENT LOOP 3 240mm AIO Liquid Cooler gives you reliable cooling performance without loud fans or pump noise — perfect if you want your PC to stay cool and calm during heavy workloads. Its easy installation and quality components make it a solid upgrade over stock coolers or basic aftermarket air coolers.

Backed by be quiet!, this AIO cooler is a great choice for gamers, creators, and enthusiasts looking for efficient thermals, quiet operation, and hassle-free setup.




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