be quiet! PURE LOOP 3 LX 12cm Liquid Cooler
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About This Item
- All-in-one liquid cooler for processor cooling
- 2x 12 cm fans with 9 blades each for enhanced airflow
- Compatible with Intel LGA 1851, 1200, 1700 and AMD AM4/AM5 sockets
- Maximum airflow of 61.8 cfm with 2.51 mmH2O air pressure
- Copper base plate with aluminum radiator for efficient heat transfer
- PWM support with 3000-5500 RPM pump speed for quiet operation
- Multi-colour LED illumination for customisable aesthetics
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be quiet! PURE LOOP 3 LX | High-Performance All-in-One Liquid Cooler
The be quiet! PURE LOOP 3 LX Processor All-in-one liquid cooler 12 cm Black 1 pc(s) delivers premium cooling performance for demanding PC builds. This 240mm radiator AIO cooler combines whisper-quiet operation with powerful thermal management, making it ideal for high-performance processors including Intel Core i9 and AMD Ryzen 9000 Series CPUs.
Slim Specs Table
| Metric | Spec |
|---|---|
| Fan Diameter | 120mm |
| Maximum Airflow | 61.8 CFM |
| Noise Level (Low) | 15.5 dB |
| Supported Sockets | LGA 1851, 1700, 1200, AM5, AM4 |
| Warranty | 3 Years |
Whisper-Quiet Operation for Distraction-Free Computing
The PURE LOOP 3 LX achieves remarkably low noise levels of just 15.5 dB at minimum speed, rising to only 35 dB at maximum. This makes it perfect for quiet home offices, content creation workstations, and gaming setups where acoustic comfort matters. The PWM-enabled fans automatically adjust speed based on thermal load, ensuring optimal balance between cooling performance and noise reduction.
Universal Compatibility for Modern Processors
This AIO cooler supports the latest processor platforms including Intel’s LGA 1851 and LGA 1700 sockets, plus AMD’s AM5 and AM4 platforms. The comprehensive socket compatibility covers everything from mainstream CPUs to high-end processors like Intel Core i9 and AMD Ryzen 9000 Series. Before purchasing, confirm your specific motherboard socket matches the supported list to ensure proper fitment.
Premium Thermal Performance with Copper Base Plate
The copper base plate provides excellent heat transfer from your processor to the cooling loop. Combined with the 240mm aluminum radiator and dual 120mm fans, this system delivers up to 105.1 m³/h airflow and 2.51 mmH2O maximum air pressure. These specifications ensure reliable thermal management even under heavy workloads, making it suitable for overclocking and sustained performance tasks.
Elegant Black Design with Multi-Color Illumination
The black finish and customizable multi-color LED illumination add a sophisticated aesthetic to your build. The 9-blade fans feature daisy-chain connectivity for simplified cable management. The compact 52mm pump height ensures compatibility with most PC cases while maintaining efficient liquid circulation at speeds up to 5500 RPM.
Box contents
- be quiet! PURE LOOP 3 LX liquid cooler
- Mounting kit for supported sockets
- Thermal grease
- User manual
Check before you buy
- Confirm your processor socket matches the supported list (LGA 1851, 1700, 1200, AM5, AM4)
- Verify your case has adequate space for 240mm radiator mounting
- Check clearance around CPU socket for pump/block assembly
- Ensure your case supports the 40cm tube length for optimal routing
Frequently Asked Questions
Q: Is this cooler compatible with Intel 14th generation processors?
A: Yes, it supports LGA 1700 and LGA 1851 sockets used by Intel 14th gen CPUs.
Q: What is the maximum CPU TDP this cooler can handle?
A: The cooler is designed for high-performance CPUs including Intel Core i9 and AMD Ryzen 9000 Series, suitable for most mainstream to high-end processors.
Q: Can I control the RGB lighting?
A: Yes, the multi-color illumination can be customized through compatible motherboard RGB control software.
Q: What are the radiator dimensions?
A: The radiator measures 120mm x 27.7cm x 2.7cm (W x D x H).
Q: Does it come with thermal paste pre-applied?
A: Thermal grease is included in the box but not pre-applied to the cooler.
The Consultant’s verdict & warranty
The be quiet! PURE LOOP 3 LX offers exceptional value for users seeking premium cooling performance with minimal noise. Its broad platform support, efficient thermal design, and elegant aesthetics make it suitable for both gaming and professional applications. Covered by the standard Manufacturer Warranty.
| Performance | |
|---|---|
| Suitable location | Processor |
| Pulse-width modulation (PWM) support | Yes |
| Noise level (low speed) | 15.5 dB |
| Noise level (high speed) | 35 dB |
| Type | All-in-one liquid cooler |
| Fan diameter | 12 cm |
| Supported processor sockets | LGA 1851, LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5 |
| Compatible processor series | AMD Ryzen 9000 Series, Intel® Core™ i9 |
| Maximum airflow | 61.8 cfm |
| Maximum air pressure | 2.51 mmH2O |
| Airflow | 105.1 m³/h |
| Number of fans | 2 fan(s) |
| Quantity per pack | 1 pc(s) |
| Number of fan blades | 9 |
| Pump connector | 4-pin |
| Pump motor speed (min) | 3000 RPM |
| Pump motor speed (max) | 5500 RPM |
| Pump motor speed | 5500 RPM |
| Fan speed (max) | 2100 RPM |
| Fan's mean time to failure (MTTF) | 60000 h |
| Design | |
| Number of fans | 2 fan(s) |
| Illumination colour | Multi |
| Product colour | Black |
| Illumination LED | Yes |
| Number of fan blades | 9 |
| Radiator material | Aluminum |
| Base plate material | Copper |
| Daisy chain | Yes |
| Technical details | |
| Noise level (low speed) | 15.5 dB |
| Noise level (high speed) | 35 dB |
| Type | All-in-one liquid cooler |
| Fan diameter | 12 cm |
| Supported processor sockets | LGA 1851, LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5 |
| Compatible processor series | AMD Ryzen 9000 Series, Intel® Core™ i9 |
| Maximum airflow | 61.8 cfm |
| Maximum air pressure | 2.51 mmH2O |
| Airflow | 105.1 m³/h |
| Number of fans | 2 fan(s) |
| Illumination LED | Yes |
| Sustainability certificates | Triman |
| Doesn't contain | Cadmium, Lead, Mercury |
| Warranty period | 3 year(s) |
| Compliance certificates | CE, Federal Communications Commission (FCC), RoHS, UKCA |
| Ports & interfaces | |
| Pump connector | 4-pin |
| Power | |
| Fan power consumption | 5.4 W |
| Fan voltage | 12 V |
| Fan current | 0.17 A |
| Colour | |
| Product colour | Black |
| Weight & dimensions | |
| Fan dimensions (W x D x H) | 120 x 120 x 25 mm |
| Package depth | 321 mm |
| Package width | 240 mm |
| Package height | 140 mm |
| Package weight | 1.75 kg |
| Height | 52 mm |
| Weight | 1.05 kg |
| Radiator width | 12 cm |
| Radiator depth | 27.7 cm |
| Radiator height | 2.7 cm |
| Tube length | 40 cm |
| Waterblock width | 9.34 cm |
| Waterblock depth | 6.85 cm |
| Waterblock height | 4.87 cm |
| Packaging data | |
| Package depth | 321 mm |
| Package width | 240 mm |
| Package height | 140 mm |
| Package weight | 1.75 kg |
| Package type | Box |
| Certificates | |
| Waste Electrical and Electronic Equipment (WEEE) compliance | Yes |
| Indication | |
| Illumination colour | Multi |
| Certification | |
| Waste Electrical and Electronic Equipment (WEEE) compliance | Yes |
| Packaging content | |
| Package type | Box |
| Mounting kit | Yes |
| Thermal grease | Yes |
| Manual | Yes |
| Other features | |
| Pump connector | 4-pin |
| Thermal grease | Yes |
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