be quiet! PURE LOOP 3 LX Processor All-in-one liquid cooler 12 cm Black 1 pc(s)

The be quiet! PURE LOOP 3 LX 12 cm Black is an all-in-one liquid cooler designed to provide efficient CPU cooling in compact and mid-sized PC builds. It includes a 120 mm fan, a low-profile 52 mm pump housing, and a sleek black finish that integrates with a variety of system designs.

Advantages

The cooler offers a compact 120 mm fan with PWM support for automatic speed control, a rated air pressure of 2.51 mmH2O and a quiet operation around 35 dB. Its lightweight 1.05 kg construction and standard mounting compatibility simplify installation while maintaining effective heat dissipation for mainstream CPUs.

Suitable for

• Small form factor and mid-tower PC builds
• Home and office systems requiring reliable CPU cooling
• Gaming PCs with limited radiator space
• Systems using Socket AM4, AM5, LGA 1700, LGA 1200, LGA 1155, LGA 1151 or LGA 1150 processors

Key specifications

• Type: All-in-one liquid cooler
• Fan diameter: 120 x 120 x 25 mm
• Airflow: 105.1 m³/h (approx. 61.8 cfm)
• Maximum air pressure: 2.51 mmH2O
• Noise level: approx. 35 dB
• Weight: 1.05 kg
• Colour: Black
• Supported sockets: Socket AM5, Socket AM4, LGA 1700, LGA 1200 (Socket H5), LGA 1155 (Socket H2), LGA 1151 (Socket H4), LGA 1150 (Socket H3)
• MPN: BW030EU
• EAN: 4260052193198

How to use

Mount the radiator and fan in an appropriate position inside the case following the motherboard and case manufacturer guidelines. Secure the cooler's pump assembly to the CPU socket that matches your processor using the supplied mounting hardware. Connect the pump and fan cables to the motherboard headers (pump to a dedicated pump or SYS header and the fan to a PWM-capable CPU or SYS fan header) to enable automatic speed control.

Recommendations

Ensure compatibility with your case's available radiator clearance and confirm that your motherboard has the required headers for pump and fan connection. Regularly check mounting screws and cable connections and keep airflow paths free of dust for sustained cooling performance.