- Product Type: Liquid CPU Cooler
- Radiator Colour: Black
- Max Fan Speed: 2200RPM
- Radiator Size: 420mm
- LED Colour: ARGB
The be quiet! Silent Loop 3 420mm (MPN: BW026) is a premium All-in-One (AiO) liquid CPU cooler engineered to deliver exceptional cooling performance for high-end processors, including Intel’s Core i9 and AMD’s Ryzen 9 series, with ample headroom for overclocking.
Key Features:
Advanced Cooling Block Design: Features a highly engineered cooling block with a 1,800 mm² fin area, significantly enhancing heat transfer and ensuring comprehensive coverage of CPU hotspots.
Innovative 3-Chamber Pump: Equipped with a powerful 3-chamber pump design that minimizes turbulence and noise, complemented by a dampened, adjustable pump with a 6-pole motor for smooth and silent operation.
Silent Wings 4 Fans: Includes three Silent Wings 4 140mm PWM high-speed fans with radiator corners, optimized for near-inaudible performance and high static pressure, ideal for efficient radiator cooling.
Elegant Design with ARGB Lighting: Showcases a sleek premium design featuring discreet ARGB lighting on the cooling block, allowing for subtle yet customizable illumination to match your system’s aesthetics.
User-Friendly Maintenance: Offers an accessible refill port and includes a coolant bottle, ensuring a prolonged lifespan and easy maintenance.
Technical Specifications:
Radiator:
Dimensions:
454 x 140 x 27 mm (L x W x H)
Material:
Aluminum
Fans:
Type:
Silent Wings 4 140mm PWM high-speed
Dimensions:
140 x 140 x 25 mm
Speed:
Up to 2,200 RPM
Airflow:
Up to 98.2 CFM (166.8 m3/h)
Air Pressure:
Up to 3.68 mmH2O
Noise Level:
Up to 39.3 dB(A)
Bearing Type:
Fluid Dynamic Bearing (FDB)
Connector:
4-pin PWM
Rated Voltage:
12V
Power Consumption:
3.6W
Current:
0.3A
MTTF:
300,000 hours
Pump:
Dimensions:
86 x 74 x 47 mm (L x W x H)
Speed Range:
1,700 – 3,500 RPM
Connector:
4-pin
Tubing:
Length:
450 mm
Material:
Flexible sleeved rubber with bend protection
Lighting:
Type:
ARGB (Addressable RGB)
LED Connector:
3-pin
LED Voltage:
5V
Socket Compatibility:
Intel:
1851 / 1700 / 1200 / 1150 / 1151 / 1155
AMD:
AM5, AM4, TR5, TR4 (bracket included)
Warranty:
3 years
The Silent Loop 3 420mm is engineered to deliver exceptional cooling performance while maintaining whisper-quiet operation, making it an ideal choice for high-end systems requiring efficient thermal management.

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