be quiet! Pure Loop 3 | 280mm

Liquid (280 mm)

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Type Liquid (280 mm)
Fan size 2x 140 mm
sockets LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5, LGA 1851

be quiet! Pure Loop 3 | 280mm is an all-in-one liquid CPU cooler with 2x 140 mm fans. Check that it supports your CPU socket and fits your cabinet. It came out in 2026.

Released: 2026-01-05

Specifications

Key specs

Type: Liquid (280 mm)
Fan size: 2x 140 mm
sockets: LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5, LGA 1851
Released: 2026-01-05
Part number: BW028US
EAN / UPC: 4260052193365

Performance

Suitable location: Processor
Type: All-in-one liquid cooler
Fan diameter: 14 cm
Supported processor sockets: LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5, LGA 1851
Compatible processor series: AMD Ryzen 9000 Series, Intel® Core™ i9
Noise level (low speed): 16.5 dB
Noise level (high speed): 36.6 dB
Maximum airflow: 72.2 cfm
Airflow: 122.6 m³/h
Maximum air pressure: 2.44 mmH2O
Pulse-width modulation (PWM) support: Yes
Bearing type: Rifle bearing
Pump connector: 4-pin
Quantity per pack: 1 pc(s)
Pump motor speed: 5500 RPM
Pump motor speed (min): 3000 RPM
Pump motor speed (max): 5500 RPM
Fan speed (max): 1800 RPM
Fan's mean time to failure (MTTF): 80000 h

Design

Product colour: Black
Radiator material: Aluminum
Base plate material: Copper
Number of fans: 2 fan(s)
Number of fan blades: 9
Fan connector: 4-pin
Daisy chain: Yes

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Power

Voltage: 12 V
Fan power consumption: 5.4 W
Maximum current: 0.45 A
Fan current: 0.13 A

Weight & dimensions

Height: 52 mm
Radiator width: 14 cm
Radiator depth: 5.2 cm
Radiator height: 31.7 cm
Tube length: 40 cm
Waterblock width: 9.34 cm
Waterblock depth: 4.49 cm
Waterblock height: 6.85 cm
Weight: 1.06 kg
Fan dimensions (W x D x H): 120 x 120 x 25 mm

Technical details

Warranty period: 3 year(s)
Sustainability certificates: Triman
Doesn't contain: Cadmium, Lead, Mercury
Compliance certificates: CE, Federal Communications Commission (FCC), RoHS, UKCA

Other features

Thermal grease: Yes

Check the manufacturer's page before buying.

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About this product

SUPREME AND QUIET COOLING

Pure Loop 3 280mm is the impressively high-performing and silent All-in-One water cooling unit for users with overclocked systems.

User manual (PDF) · Datasheet (PDF)

Pure Loop 3 | 280mm vs similar CPU coolers

	be quiet! Pure Loop 3 \| 280mm	be quiet! Pure Loop 2 \| 280mm	ARCTIC Liquid Freezer III Pro 280 - Multi Compatible All-in-One CPU Water Cooler	ARCTIC Liquid Freezer III Pro 280 A-RGB - Multi Compatible All-in-One CPU Water Cooler with A-RGB
Type	Liquid (280 mm)	Liquid (280 mm)	Liquid (280 mm)	Liquid (280 mm)
Fan size	2x 140 mm	2x 140 mm	2x 140 mm	2x 140 mm
sockets	LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5, LGA 1851	LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1200 (Socket H5), LGA 1700, Socket AM4, Socket AM5	LGA 1851, LGA 1700, Socket AM4, Socket AM5	LGA 1851, LGA 1700, Socket AM4, Socket AM5
Released	2026	—	2025	2025