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Black 240mm AIO radiator with two 120mm PWM fans and a square pump block

be quiet!

be quiet! PURE LOOP 3 240mm Liquid Cooler BW027US

SKU CH-W0J0-QCZDE MPN BW027US

A 240 mm all-in-one liquid cooler with two 120 mm PWM fans and a 6-pole pump for heavily overclocked CPUs

  • TypeAIO
  • Block CompatibilityAMD Socket AM4 / AMD Socket AM5 / Intel LGA 1150 / Intel LGA
  • Fan Size2 Fan Slots (120 mm)
  • ColorBlack
  • LED ColorNon LED
  • High cooling performance for all consumer CPUs
  • PWM pump with 6-pole motor minimises vibration
  • Two Pure Wings 3 120 mm PWM fans deliver high static pressure quietly
  • Daisy-chained PWM fans simplify cable management
  • Flexible sleeved tubes and simple mounting ease installation

240mm AIO for overclocked CPUs

The be quiet! PURE LOOP 3 240mm liquid cooler targets builders running heavily overclocked consumer processors. It supports AMD Socket AM4 and AM5 plus Intel LGA 1150, 1151, 1155, 1200, 1700 and 1851 platforms. The 240mm radiator pairs with two 120mm Pure Wings 3 PWM high-speed fans for high static pressure. No LED lighting is included.

Simple mounting with daisy-chained fans

Installation uses flexible sleeved tubes and a straightforward mounting system for easy handling. The two PWM fans are daisy-chained so a single motherboard header controls both, reducing cable clutter. A refill port is accessible for future maintenance. The PWM pump employs a 6-pole motor with three phases to keep vibration at a minimum.

Limited by 240mm radiator surface

Cooling capacity is bounded by the 240mm radiator area and the airflow of two 120mm fans. Extreme overclocks on high-core-count chips may exceed what this loop can dissipate continuously. The pump speed follows the PWM curve, so very low duty cycles can reduce flow. Builders needing more thermal headroom should consider larger radiators.

Highlights

  • High cooling performance for all consumer CPUs
  • PWM pump with 6-pole motor minimises vibration
  • Two Pure Wings 3 120 mm PWM fans deliver high static pressure quietly
  • Daisy-chained PWM fans simplify cable management
  • Flexible sleeved tubes and simple mounting ease installation

Specifications

Brandbe quiet!
SeriesPURE LOOP 3
ModelBW027
Part NumberBW027
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 Size2 Fan Slots (120 mm)
ColorBlack
LED ColorNon LED
Shipping weight1.72 kg
Package size320 × 241 × 140 mm

Questions about this item

How can I confirm the PWM pump is running at the intended speed after installing the BW027US?

The 6-pole motor pump and both 120 mm Pure Wings 3 fans report their RPM through the motherboard PWM headers; verify the curves in BIOS or monitoring software match the profiles you set.

What comes in the box with the PURE LOOP 3 240 mm cooler and what must I supply myself?

The package includes the 240 mm radiator, pump block with refill port, two pre-mounted 120 mm PWM fans and mounting hardware for AM4, AM5, LGA 1150, 1151, 1155, 1200, 1700 and 1851; you only need thermal paste.

Which version of the PURE LOOP 3 should I pick for an LGA 1700 build?

The single BW027US model supports LGA 1700 out of the box along with AM4, AM5, LGA 1150, 1151, 1155, 1200 and 1851, so no separate version is required.

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