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Be Quiet SILENT LOOP 3 Water Cooling AIO CPU With 3 Fans 140mm And ARGB Lighting
AIO CPU Liquid Cooling

Be Quiet SILENT LOOP 3 Water Cooling AIO CPU With 3 Fans 140mm And ARGB Lighting

Key features:

  • Radiator Size: Triple Fan
  • Fan Dimension: 140 mm
  • RGB Lighting
  • 420mm
See full description

  • Radiator Size

    Triple Fan

    Radiator 360mm – high performance for gaming/intensive use, requires a large case.

  • Fan Dimension

    The fan dimension (in millimeters) affects airflow, noise, and compatibility with the case.

  • Fan Speed

    The fan speed determines how fast it spins, affecting airflow and noise level.

    • Low (500-1000 RPM): Quiet operation, ideal for low-noise builds, but with less airflow.
    • Medium (1000-1800 RPM): Balanced performance between cooling and noise.
    • High (1800+ RPM): Maximum airflow, suitable for demanding conditions or overclocking, with increased noise.

  • Lighting

    ARGB

    Advanced RGB lighting with individual control of each LED for more dynamic effects.
  • See all
Product report

Description

Description

The cooling block of the Silent Loop 3 420mm is indisputable. The explanation may seem complex, but we owe it to our most loyal fans and all the enthusiastic users out there: The cooling block features a fin surface of 1,800 mm², which is increased up to 2 times compared to many other AiOs in this category. This significantly improves heat transfer and ensures that all the CPU's hot spots are covered. The large fin surface could only be achieved with a specially developed screwless design for mounting the heat plate. The internal flow path design ensures that all areas are evenly permeated to achieve high performance regardless of the CPU platform.

Enjoy the Silence

A powerful PWM pump with a 3-chamber design ensures the very high performance of the Silent Loop 3 420mm and is simultaneously quiet. The second of its 3 chambers functions as a reservoir and offers enough space for the coolant to spread out, thus reducing turbulence before the liquid leaves the pump unit. In combination with the 6-pole three-phase motor, this results in smooth and consequently quiet operation.

Silent Wings 4 Fans

The Silent Loop 3 420mm features 2 high-speed Silent Wings 4 120mm PWM fans. These fans have fan blades optimized for quiet operation and funnel-shaped air outlets, making the Silent Wings 4 120mm PWM high-speed fan one that does not compromise between very quiet operation and higher performance. The frame angles are designed to minimize air leakage to the radiators.

Simplified refilling process for long lifespan

The easily accessible refill port ensures convenient handling, safe refilling, and comfortable maintenance. The included coolant bottle extends the lifespan.

The perfect combination of power and elegance

The design of the cooling block is iconic and unmistakable. We kept it completely black and sleek to represent the ultimate cooling power offered by the Silent Loop 3 420mm, despite being almost inaudible. Optionally, you can activate the ARGB LED lights. The Silent Loop 3 420mm is a statement in your computer case: you strive for the maximum in every area.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Main Specifications

Socket
1200, 1700, 1851, AM4, AM5, TR4, TR5
Radiator Size
Triple Fan

Radiator Size

Triple Fan
Radiator 360mm – high performance for gaming/intensive use, requires a large case.
Fan Dimension
140 mm

Fan Dimension

The fan dimension (in millimeters) affects airflow, noise, and compatibility with the case.
Colour
Black
Tube Length
420 mm

Tube Length

The Tubing Length (mm) indicates how long the tubes connecting the pump to the radiator of the liquid cooling system are, and it directly affects the ease of installation inside the case. A longer length offers more flexibility in radiator placement (e.g., in large cases or in different positions such as the top or front), while a shorter length results in a more “compact” setup but with limited placement options.
Lighting
ARGB

Lighting

ARGB
Advanced RGB lighting with individual control of each LED for more dynamic effects.
Pump Display
-

Pump Display

Built-in display on the pump for viewing temperatures and statistics. Allows full customization with your own designs or animated GIFs.

Technical Specifications

Fan Speed (max)
1900 rpm

Fan Speed (max)

The fan speed determines how fast it spins, affecting airflow and noise level.

  • Low (500-1000 RPM): Quiet operation, ideal for low-noise builds, but with less airflow.
  • Medium (1000-1800 RPM): Balanced performance between cooling and noise.
  • High (1800+ RPM): Maximum airflow, suitable for demanding conditions or overclocking, with increased noise.
Fan Noise Level (Full Load)
34.3 dB

Fan Noise Level (Full Load)

The Fan Noise Level (Full Load) indicates how much noise the liquid cooler’s fans produce when operating at maximum speed, that is, under full load. It is measured in dB(A), and the lower the value, the quieter the operation. This is an important feature for those who want a quiet system, especially in demanding uses such as gaming or rendering where the fans run at maximum.
Air Flow
78.4 cfm

Air Flow

Airflow (CFM) indicates the volume of air that the fan moves per minute (Cubic Feet per Minute) and directly affects the cooling performance of the radiator. The higher the value, the more air passes through the radiator, contributing to better heat dissipation, although it is usually accompanied by increased noise.
Air Pressure
2.36 mmH₂O: millimeters of water

Air Pressure

Air Pressure (mmAq) indicates the force with which the fan pushes air through obstacles such as the radiator and is measured in mm of water column. The higher the value, the better the fan can penetrate the dense fins of the radiator, making it more efficient for water cooling compared to regular case fans.
Bearing Type
Hydraulic

Bearing Type

Hydraulic
Hydraulic bearings use a special pressurized lubricant system for smooth rotation, offering low noise, good durability, and balanced performance for everyday use.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (3)

Reviews

5.0
3
5.0
Review this product
  1. 3
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Effective cooling
  • Installation
  • Silent
  • Refrigerator volume
  • Construction quality
  • Value for money

Reviews by our members

  • Kircoff
    5
    2 out of 2 members found this review helpful
    Kircoff

    Verified purchase

    Excellent water cooler, I waited a few months to have a clear picture (I will come back after 2 years since I believe that's when its reliability will show), in terms of performance it is amazing, I am 10 degrees lower, zero noise and in terms of looks it is simple and minimal... but be careful with the case, it is quite large. The purchase is worth it if you do demanding use as there is not much difference with a smaller one.

    Translated from Greek ·
    Did you find this review helpful?
  • Jh_Kvrs
    5
    3 out of 3 members found this review helpful
    Jh_Kvrs

    Very strong choice in water cooling, I got the 420mm with 3x140mm fans for maximum cooling and I was compensated to the fullest extent. The i9 9900K (4800MHz) in stress test goes MAX 70 degrees, while in gaming it does not exceed 60 degrees. Finally, I should add that it is truly silent up to 50% of the fan speed.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    iasonkat

    Verified purchase

    • Effective cooling
    • Installation
    • Silent
    • Refrigerator volume
    • Construction quality
    • Value for money
  • Kircoff
    5
    Kircoff

    Excellent water cooler, I waited a few months to have a clear picture (I will come back after 2 years since I believe that's when its reliability will show), in terms of performance it is amazing, I am 10 degrees lower, zero noise and in terms of looks it is simple and minimal... but be careful with the case, it is quite large. The purchase is worth it if you do demanding use as there is not much difference with a smaller one.

    Translated from Greek ·
    2
  • Jh_Kvrs
    5
    Jh_Kvrs

    Very strong choice in water cooling, I got the 420mm with 3x140mm fans for maximum cooling and I was compensated to the fullest extent. The i9 9900K (4800MHz) in stress test goes MAX 70 degrees, while in gaming it does not exceed 60 degrees. Finally, I should add that it is truly silent up to 50% of the fan speed.

    Translated from Greek ·
    3
  • 5
    iasonkat

    0
  • See all

Description & Specifications

The cooling block of the Silent Loop 3 420mm is indisputable. The explanation may seem complex, but we owe it to our most loyal fans and all the enthusiastic users out there: The cooling block features a fin surface of 1,800 mm², which is increased up to 2 times compared to many other AiOs in this category. This significantly improves heat transfer and ensures that all the CPU's hot spots are covered. The large fin surface could only be achieved with a specially developed screwless design for mounting the heat plate. The internal flow path design ensures that all areas are evenly permeated to achieve high performance regardless of the CPU platform.

Enjoy the Silence

A powerful PWM pump with a 3-chamber design ensures the very high performance of the Silent Loop 3 420mm and is simultaneously quiet. The second of its 3 chambers functions as a reservoir and offers enough space for the coolant to spread out, thus reducing turbulence before the liquid leaves the pump unit. In combination with the 6-pole three-phase motor, this results in smooth and consequently quiet operation.

Silent Wings 4 Fans

The Silent Loop 3 420mm features 2 high-speed Silent Wings 4 120mm PWM fans. These fans have fan blades optimized for quiet operation and funnel-shaped air outlets, making the Silent Wings 4 120mm PWM high-speed fan one that does not compromise between very quiet operation and higher performance. The frame angles are designed to minimize air leakage to the radiators.

Simplified refilling process for long lifespan

The easily accessible refill port ensures convenient handling, safe refilling, and comfortable maintenance. The included coolant bottle extends the lifespan.

The perfect combination of power and elegance

The design of the cooling block is iconic and unmistakable. We kept it completely black and sleek to represent the ultimate cooling power offered by the Silent Loop 3 420mm, despite being almost inaudible. Optionally, you can activate the ARGB LED lights. The Silent Loop 3 420mm is a statement in your computer case: you strive for the maximum in every area.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Main Specifications

Socket
1200, 1700, 1851, AM4, AM5, TR4, TR5
Radiator Size
Triple Fan

Radiator Size

Triple Fan
Radiator 360mm – high performance for gaming/intensive use, requires a large case.
Fan Dimension
140 mm

Fan Dimension

The fan dimension (in millimeters) affects airflow, noise, and compatibility with the case.
Colour
Black
Tube Length
420 mm

Tube Length

The Tubing Length (mm) indicates how long the tubes connecting the pump to the radiator of the liquid cooling system are, and it directly affects the ease of installation inside the case. A longer length offers more flexibility in radiator placement (e.g., in large cases or in different positions such as the top or front), while a shorter length results in a more “compact” setup but with limited placement options.
Lighting
ARGB

Lighting

ARGB
Advanced RGB lighting with individual control of each LED for more dynamic effects.
Pump Display
-

Pump Display

Built-in display on the pump for viewing temperatures and statistics. Allows full customization with your own designs or animated GIFs.

Technical Specifications

Fan Speed (max)
1900 rpm

Fan Speed (max)

The fan speed determines how fast it spins, affecting airflow and noise level.

  • Low (500-1000 RPM): Quiet operation, ideal for low-noise builds, but with less airflow.
  • Medium (1000-1800 RPM): Balanced performance between cooling and noise.
  • High (1800+ RPM): Maximum airflow, suitable for demanding conditions or overclocking, with increased noise.
Fan Noise Level (Full Load)
34.3 dB

Fan Noise Level (Full Load)

The Fan Noise Level (Full Load) indicates how much noise the liquid cooler’s fans produce when operating at maximum speed, that is, under full load. It is measured in dB(A), and the lower the value, the quieter the operation. This is an important feature for those who want a quiet system, especially in demanding uses such as gaming or rendering where the fans run at maximum.
Air Flow
78.4 cfm

Air Flow

Airflow (CFM) indicates the volume of air that the fan moves per minute (Cubic Feet per Minute) and directly affects the cooling performance of the radiator. The higher the value, the more air passes through the radiator, contributing to better heat dissipation, although it is usually accompanied by increased noise.
Air Pressure
2.36 mmH₂O: millimeters of water

Air Pressure

Air Pressure (mmAq) indicates the force with which the fan pushes air through obstacles such as the radiator and is measured in mm of water column. The higher the value, the better the fan can penetrate the dense fins of the radiator, making it more efficient for water cooling compared to regular case fans.
Bearing Type
Hydraulic

Bearing Type

Hydraulic
Hydraulic bearings use a special pressurized lubricant system for smooth rotation, offering low noise, good durability, and balanced performance for everyday use.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (3)

5.0
3
5.0
Review this product
  1. 3
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Effective cooling
  • Installation
  • Silent
  • Refrigerator volume
  • Construction quality
  • Value for money

Reviews by our members

  • Kircoff
    5
    2 out of 2 members found this review helpful
    Kircoff

    Verified purchase

    Excellent water cooler, I waited a few months to have a clear picture (I will come back after 2 years since I believe that's when its reliability will show), in terms of performance it is amazing, I am 10 degrees lower, zero noise and in terms of looks it is simple and minimal... but be careful with the case, it is quite large. The purchase is worth it if you do demanding use as there is not much difference with a smaller one.

    Translated from Greek ·
    Did you find this review helpful?
  • Jh_Kvrs
    5
    3 out of 3 members found this review helpful
    Jh_Kvrs

    Very strong choice in water cooling, I got the 420mm with 3x140mm fans for maximum cooling and I was compensated to the fullest extent. The i9 9900K (4800MHz) in stress test goes MAX 70 degrees, while in gaming it does not exceed 60 degrees. Finally, I should add that it is truly silent up to 50% of the fan speed.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    iasonkat

    Verified purchase

    • Effective cooling
    • Installation
    • Silent
    • Refrigerator volume
    • Construction quality
    • Value for money
  • Kircoff
    5
    Kircoff

    Excellent water cooler, I waited a few months to have a clear picture (I will come back after 2 years since I believe that's when its reliability will show), in terms of performance it is amazing, I am 10 degrees lower, zero noise and in terms of looks it is simple and minimal... but be careful with the case, it is quite large. The purchase is worth it if you do demanding use as there is not much difference with a smaller one.

    Translated from Greek ·
    2
  • Jh_Kvrs
    5
    Jh_Kvrs

    Very strong choice in water cooling, I got the 420mm with 3x140mm fans for maximum cooling and I was compensated to the fullest extent. The i9 9900K (4800MHz) in stress test goes MAX 70 degrees, while in gaming it does not exceed 60 degrees. Finally, I should add that it is truly silent up to 50% of the fan speed.

    Translated from Greek ·
    3
  • 5
    iasonkat

    0
  • See all
144,00 €
14,00 €   shipping cost