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Black 360 mm AIO cooler with three 120 mm fans and ARGB pump block

be quiet!

be quiet! PURE LOOP 3 LX 360mm ARGB liquid cooler BW031US

SKU CH-X0N9-9E3TG MPN BW031US

A 360 mm AIO with three 120 mm PWM fans, 10 ARGB lighting foils, a refill port and sockets from LGA 1150 to LGA 1851 plus AM4 and AM5

  • TypeAIO
  • Block CompatibilityAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA
  • Fan Size3 Fan Slots (120 mm)
  • ColorBlack
  • LED ColorARGB
  • ARGB block with 10 swappable lighting foils for personalised looks
  • Three Light Wings LX PWM fans with funnel outlets for vibrant cooling
  • Daisy-chained PWM fans simplify cable routing and control
  • 6-pole PWM pump minimises vibration for quieter operation
  • Accessible refill port allows easy coolant maintenance
  • Supports AMD AM4, AM5 and Intel LGA 1150, 1151, 1155, 1200, 1700, 1851 sockets

A 360 mm AIO for heavily overclocked CPUs

The be quiet! PURE LOOP 3 LX 360mm is an all-in-one liquid cooler built for heavily overclocked systems. It fits AMD Socket AM4 and AM5 plus Intel LGA 1150, 1151, 1155, 1200, 1700 and 1851. Three 120 mm Light Wings LX PWM fans provide high-speed airflow through the radiator. Buyers who need a compact air cooler or a smaller radiator will not be served by this design.

ARGB block with ten swappable lighting foils

The cooling block features addressable RGB illumination and includes ten lighting foils for custom visual effects. Daisy-chained PWM fans simplify cable routing to a single header. The PWM pump uses a 6-pole motor to keep vibration low. An accessible refill port allows coolant top-up without removing the unit. Builders who prefer a non-illuminated block or a fixed lighting scheme should look elsewhere.

Three 120 mm high-speed fans in a daisy chain

Three Light Wings LX PWM fans with funnel-shaped outlets deliver the airflow that defines this cooler's thermal capacity. Their daisy-chained PWM connection means one motherboard header controls all three fans. The 360 mm radiator length matches the three-fan layout. Systems limited to two fan mounts or a shorter radiator cannot accommodate this cooler.

Highlights

  • ARGB block with 10 swappable lighting foils for personalised looks
  • Three Light Wings LX PWM fans with funnel outlets for vibrant cooling
  • Daisy-chained PWM fans simplify cable routing and control
  • 6-pole PWM pump minimises vibration for quieter operation
  • Accessible refill port allows easy coolant maintenance
  • Supports AMD AM4, AM5 and Intel LGA 1150, 1151, 1155, 1200, 1700, 1851 sockets

Specifications

Brandbe quiet!
SeriesPURE LOOP 3 LX
ModelBW031
Part NumberBW031
TypeAIO
Block CompatibilityAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA 1151 / Intel LGA 1155 / Intel LGA 1200 / Intel LGA 1700 / Intel LGA 1851
Fan Size3 Fan Slots (120 mm)
ColorBlack
LED ColorARGB
Shipping weight2.11 kg
Package size460 × 210 × 140 mm

Questions about this item

Which socket should I pick for my build?

The cooler supports AMD AM4, AM5 and Intel LGA 1150, 1151, 1155, 1200, 1700 and 1851 sockets out of the box.

What does the 360 mm radiator mean for my CPU temperatures?

A 360 mm radiator with three 120 mm fans gives enough surface area to keep heavily overclocked consumer CPUs cool under sustained load.

How does the daisy-chained PWM setup affect fan control?

All three Light Wings LX fans share one PWM header so they spin in sync, simplifying cable routing and letting the motherboard control the whole array together.

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