120mm Lian Li UNI FAN CL 120mm (model 12CL1W3B) PWM addressable RGB integrated fan system

Lian Li UNI FAN CL 120mm (model 12CL1W3B) is a 120 mm PWM-controlled case fan with addressable RGB lighting and a modular interlocking design for flexible installation. Engineered for PC cooling, this fan combines adjustable speed control and synchronized addressable RGB to balance airflow performance and visual customization. The interlocking frame lets multiple fans connect securely for a compact, consistent appearance and simplified cable routing.

Advantages

The UNI FAN CL 120mm offers PWM control for variable fan speed, enabling quieter operation at low loads and increased airflow when needed. Addressable RGB lighting provides per-fan illumination and can be synchronized across a chain of interlocked fans for consistent lighting effects. The modular interlocking design simplifies installation and placement in tight spaces, reducing the need for additional mounting hardware and improving cable management.

Suitable for

• Custom PC builds requiring compact 120 mm case fans
• Systems where synchronized addressable RGB lighting is desired
• Enclosures needing flexible fan arrangement and improved cable management
• Users who want PWM-controlled cooling to balance noise and airflow

Key specifications

• Fan size: 120 mm
• Control: PWM speed control
• Lighting: Addressable RGB
• Design: Modular interlocking frame for chained installation
• Application: Case cooling for desktop PCs

How to use

Mount the 120 mm fan in a compatible fan location within your PC case using the provided screw points or compatible mounting hardware. Connect the PWM power connector to a motherboard fan header or a PWM-capable fan controller to enable variable speed control. Attach the addressable RGB connector to a compatible RGB header or controller to control lighting effects; when installing multiple UNI FAN CL units, align and interlock their frames to secure a contiguous array and route cables along the interlock channels for neat management. Configure fan curves and RGB profiles through your motherboard or controller software to match cooling and lighting preferences.

Usage recommendations

For optimal results, use PWM control to set a dynamic fan curve that increases speed under higher CPU/GPU load and reduces speed at idle to minimize noise. When combining multiple fans, interlock units before final cable connections to ensure consistent alignment and easier access to headers. Verify compatibility of addressable RGB headers with your motherboard or controller to avoid incorrect lighting behavior.