1. Introduction and Overview
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your Thermalright TL-C12RB-S or TL-C12RW-S 12cm Reverse Case Fan. These fans are designed to provide efficient cooling for computer cases and radiators, featuring PWM control for precise speed adjustment and ARGB lighting for customizable aesthetics.
Key Features:
- Compatibility with multiple form factors.
- Optimized thermal dissipation design.
- Easy installation and maintenance.
- PWM (Pulse Width Modulation) for dynamic speed control.
- ARGB (Addressable RGB) lighting for personalized visual effects.
2. Safety Information
Please read and understand all safety warnings before using this product.
- Do not use the fan in humid environments.
- Do not disassemble internal components of the fan without authorization. Unauthorized disassembly may void your warranty and cause damage.
- Ensure adequate ventilation around your computer system to prevent overheating.
- Keep fingers and other objects away from the fan blades when the fan is operating or connected to power.
3. Package Contents
Please check the package contents upon unboxing. If any items are missing or damaged, contact your retailer.
- 1x Thermalright TL-C12RB-S or TL-C12RW-S 12cm Reverse Case Fan
- Mounting Screws (typically 4 screws for case installation)
4. Setup and Installation
Follow these steps to properly install your Thermalright case fan:
- Determine Fan Direction: These are reverse fans, meaning they pull air from the side with the frame and push it out the side with the exposed blades. Select the appropriate mounting location and orientation (intake or exhaust) on the inner wall of your computer chassis or radiator.
- Mount the Fan: Secure the fan to the desired location using the provided mounting screws. Ensure it is firmly attached to prevent vibration.
- Connect Power and ARGB: Connect the 4-pin PWM fan cable to an available 4-pin fan header on your motherboard or fan hub. Connect the 5V 3-pin ARGB cable to an available 5V 3-pin ARGB header on your motherboard or ARGB controller. Ensure correct polarity for ARGB connections to avoid damage.
- Test Functionality: After installation, turn on your computer. Verify that the fan spins and the ARGB lighting illuminates correctly.

Image: Airflow Direction Diagram for C12RW-S V2 Fan

Image: Fan Power and ARGB Cables
Installation Video:
Video: Demonstration of Thermalright fans installed in a PC case, showcasing ARGB lighting and cooling setup.
5. Operating Instructions
- Fan Speed Control (PWM): The fan speed is automatically controlled by your motherboard's BIOS/UEFI settings or fan control software, based on system temperature. You can adjust fan curves in your motherboard's software for customized performance.
- ARGB Lighting Control: The ARGB lighting can be synchronized and controlled via your motherboard's ARGB software (e.g., ASUS Aura Sync, MSI Mystic Light Sync, GIGABYTE RGB Fusion, ASRock Polychrome Sync) or a dedicated ARGB controller (sold separately).
6. Maintenance
Regular maintenance helps ensure optimal performance and longevity of your fan:
- Dust Cleaning: Regularly clean dust from the fan blades and frame using compressed air or a soft brush. Ensure the fan is powered off before cleaning.
- Inspection: Periodically check for any abnormal noise, excessive vibration, or signs of overheating during operation. If any issues are detected, immediately turn off your computer and inspect the fan.
7. Troubleshooting
If you encounter any issues with your fan, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Fan fails to power on | Loose or incorrect power connection | Check all 4-pin PWM power connections to the motherboard or hub. Ensure they are securely seated. |
| Poor heat dissipation | Dust accumulation, incorrect airflow, insufficient fans | Clean dust from the fan and surrounding components. Verify correct fan direction for optimal airflow. Consider adding additional fans if needed. |
| Excessive noise | Fan blades scratched, loose, or foreign objects | Inspect fan blades for any scratches or damage. Ensure the fan is securely mounted. Remove any foreign objects obstructing the fan. |
| ARGB lighting not working | Loose or incorrect ARGB connection, software issue | Check the 5V 3-pin ARGB connection to the motherboard or controller. Ensure correct polarity. Verify ARGB software settings. |
8. Specifications
| Feature | Specification |
|---|---|
| Model Numbers | TL-C12RB-S, TL-C12RW-S |
| Fan Dimensions | L120mm x W120mm x H25mm |
| Fan Speed | 0 - 1500 RPM (± 10%) |
| Noise Level | 25.6 dBA (MAX) |
| Air Volume | 58 CFM (MAX) |
| Wind Pressure | 1.53 mm H2O |
| Power Interface | 4-pin PWM |
| ARGB Interface | +5V 3-pin ARGB |
| Working Voltage | 12V DC |
| Rated Current | 0.20A |
| Bearing Type | S-FDB Bearing (Stably-FDB magnetic stabilized bearing) |
| Fan Life | 50,000 hours |
| Blade Quantity | 9 |
| Used For | Case, Radiator |
| Material | Industrial strength PBT+PC |
| Certifications | CE, RoHS |
9. User Tips
- Optimize Airflow: For best cooling performance, ensure your reverse fans are positioned to complement the overall airflow direction within your PC case (e.g., as intake fans on the bottom or side, or exhaust on the top/rear depending on case design).
- ARGB Customization: Explore your motherboard's ARGB software to fully customize the lighting effects and colors to match your build's aesthetic.
- Cable Management: Route fan cables neatly to improve airflow and the overall appearance of your PC build.
10. Warranty and Support
This Thermalright TL-C12RB-S/C12RW-S fan comes with a 3-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use.

Image: Warranty and Feature Highlights
For warranty claims, technical support, or any product-related inquiries, please contact your original retailer or the official Thermalright support channel.
For additional information, you may refer to the User Manual (PDF) provided by the manufacturer.
