be quiet! Pure Rock Pro 3 LX
Efficient Air Cooling for Modern CPUs
The be quiet! Pure Rock Pro 3 LX is a high-performance air cooler designed to handle the thermal demands of today's flagship processors. With a dual-tower design, six heat pipes, and a 120mm PWM fan, it delivers exceptional cooling performance while maintaining the signature be quiet! acoustics. Whether you're gaming, creating content, or overclocking, this cooler keeps your CPU at optimal temperatures.
Key Features
- Dual-Tower Design: Two aluminum fin arrays maximize surface area for superior heat dissipation.
- Six Heat Pipes: Direct-touch copper heat pipes efficiently transfer heat from the CPU to the fins.
- 120mm PWM Fan: Spins up to 2000 RPM, providing strong airflow while keeping noise levels at a mere 34.8 dB.
- Broad Compatibility: Supports Intel LGA 1851/1700/1200/115x and AMD AM4/AM5 sockets.
- Compact Height: At 155mm, it fits most mid-tower cases and offers excellent RAM clearance.
Performance and Acoustics
The Pure Rock Pro 3 LX strikes an ideal balance between cooling and quietness. Its fan uses a rifle bearing for longevity and smooth operation. At full speed, the cooler moves ample air to tame high-TDP CPUs, yet the noise output remains unobtrusive, making it suitable for quiet PC builds. The included PWM support allows precise fan control, so the cooler stays whisper-quiet during idle and ramps up only when needed.
Who Is It For?
This cooler is perfect for PC enthusiasts and gamers who want reliable air cooling without the complexity of liquid cooling. It's an excellent choice for builds featuring Intel Core i5/i7/i9 or AMD Ryzen 5/7/9 processors. The easy mounting system works with both current and legacy sockets, making it a versatile upgrade for existing systems.
Easy Installation
be quiet! has engineered the mounting process to be straightforward. The included backplate and mounting brackets are clearly labeled, and the instructions are easy to follow. Most users can install the cooler in under 20 minutes, even without prior experience.
Conclusion
If you're seeking a dependable, high-performance air cooler that won't break the bank, the be quiet! Pure Rock Pro 3 LX is a top contender. Its combination of cooling efficiency, low noise, and broad compatibility makes it a smart investment for any serious PC builder.
Key Specifications
Detailed Parameters
- Supported Sockets:
- LGA 1150, LGA 1151, LGA 1155, LGA 1156, LGA 1200, LGA 1851, LGA 1700, AM4, AM5
- Height in mm:
- 155
Pros
- Excellent cooling performance for its class
- Very quiet operation at 34.8 dB
- Broad socket compatibility including latest LGA1851 and AM5
- Compact height (155mm) fits most cases
- Easy installation with clear instructions
Cons
- May not fit in small form factor cases due to height
- Single fan design limits extreme overclocking potential
- No RGB lighting (if aesthetics are a priority)

