Ventoinha para caixa HAVN H14 PWM 140 mm preto — pack de 3, controlo de velocidade PWM, 140 mm cada

Set of three HAVN H14 PWM 140 mm black case fans designed for desktop PC cooling. Each 140 mm fan features PWM speed control to adjust rotation automatically according to motherboard or fan controller signals, enabling balanced airflow and noise levels. The pack is suitable for case intake, exhaust, radiator mounting or replacing worn fans, and is intended to provide steady cooling for CPUs, GPUs and other system components.

Advantages

The HAVN H14 PWM set delivers consistent airflow with 140 mm fan blades engineered to move air efficiently while minimizing turbulence. PWM control allows automatic speed regulation based on system temperature, which helps reduce acoustic output at low loads and increase cooling when required. The included three-fan pack simplifies multi-fan installations and improves overall case ventilation compared with single or non‑PWM fans.

Suitable for

• Desktop PC cases requiring improved intake or exhaust airflow
• Mounting on CPU/GPU radiators in liquid cooling setups compatible with 140 mm fans
• Replacing existing 140 mm fans to enable PWM-controlled speed management
• Systems where quieter operation at idle and responsive cooling under load are desired

Key specifications

• Fan diameter: 140 mm each
• Speed control: PWM (pulse-width modulation) for automatic RPM adjustment
• Color: black frame and blades
• Pack contents: three identical 140 mm fans
• Connector type: 4-pin PWM connector compatible with standard motherboard headers
• Mounting: standard 140 mm screw pattern for case and radiator installation

How to use

Install each fan in the desired orientation for intake or exhaust using the standard 140 mm mounting holes and screws. Connect the 4-pin PWM connector to a compatible motherboard fan header or fan controller capable of PWM signaling. After connection, verify in BIOS or fan control software that the header is configured for PWM mode to allow automatic speed regulation. Ensure that airflow direction aligns with your case ventilation plan and that cables are routed to avoid impeding fan blades.

Recommendations

For optimal results, use the three-fan pack to create a balanced airflow configuration (for example, two intake and one exhaust or vice versa depending on case layout). Regularly clean fan blades and filters to maintain airflow and cooling efficiency. When mounting on radiators, ensure sufficient clearance and confirm compatibility with radiator thickness and bracket spacing.