1. Product Overview
The Thermalright TL-C12CW-S is a high-performance 120mm ARGB cooling fan designed for computer cases and CPU coolers. It features automatic speed control via a 4-pin PWM interface, adjusting fan speed based on motherboard temperature for optimal cooling efficiency. The fan incorporates S-FDB quality bearings to minimize noise and extend lifespan, even under high performance demands.
Equipped with high-brightness LED atomization ARGB fan blades, it provides soft and vibrant lighting effects. With up to 17 light effect modes, ARGB lighting can be managed and synchronized through your motherboard's ARGB port.


2. Setup and Installation
Follow these steps to install your Thermalright TL-C12CW-S fan:
- Mounting the Fan: Position the fan in your desired location (e.g., PC case, CPU cooler, radiator). Use the included screws to secure the fan to the mounting points. Ensure the fan is oriented correctly for optimal airflow (intake or exhaust).
- PWM Signal Sync Wiring: Connect the 4-pin PWM connectors of your fans to synchronize their speed. If installing multiple fans, connect them in series using the provided cables.
- Connect to Motherboard (PWM): Connect the main fan PWM connector to a 4-pin CHA_FAN header on your motherboard to power the fans and enable speed control.
- ARGB Lighting Wiring: Remove the protective caps from the ARGB 3-pin connectors. Connect the ARGB connectors of your fans in series to synchronize the lighting signal. Up to five fans can be connected to one motherboard ARGB lighting header. Ensure correct orientation by aligning the arrows on both headers.
- Connect to Motherboard (ARGB): Connect the main ARGB lighting cable to a 3-pin +5V ARGB header on your motherboard for lighting control.

Refer to your motherboard manual for specific header locations.

Installation Video Guide
Video 1: This video demonstrates the installation process for the Thermalright TL-C12C-S fan series, including mounting the fan and connecting the PWM and ARGB cables to the motherboard. It shows how to use the included screws to install the fan on a PC case and how to connect multiple fans for synchronized speed and lighting.
3. Operating Instructions
Fan Speed Control (PWM)
The fan speed is automatically controlled by your motherboard via the 4-pin PWM connection. The motherboard adjusts the fan speed based on CPU or system temperature, ensuring optimal cooling performance while minimizing noise. You can typically configure fan curves in your motherboard's BIOS/UEFI settings or through dedicated software provided by your motherboard manufacturer.
ARGB Lighting Control
The ARGB lighting effects can be controlled and synchronized through your motherboard's ARGB software (e.g., ASUS Aura Sync, MSI Mystic Light Sync, Gigabyte RGB Fusion, ASRock Polychrome Sync). Ensure your motherboard has a compatible 3-pin +5V ARGB header. Do not connect to a 4-pin +12V RGB header, as this may damage the LEDs.
4. Maintenance
Regular maintenance helps ensure the longevity and performance of your fan:
- Dust Cleaning: Periodically clean dust from the fan blades and frame using compressed air or a soft brush. Ensure the PC is powered off before cleaning.
- Cable Management: Ensure all cables are neatly managed and not obstructing airflow or fan movement.
- Inspection: Check for any loose connections or signs of wear on the cables and connectors.
5. Troubleshooting
If you encounter issues with your fan, consider the following:
- Fan Not Spinning:
- Check if the 4-pin PWM connector is securely plugged into the motherboard's fan header.
- Verify that the fan header is enabled in the motherboard's BIOS/UEFI settings.
- Ensure your power supply is providing adequate power.
- No ARGB Lighting:
- Confirm the 3-pin ARGB connector is correctly plugged into a +5V ARGB header on the motherboard.
- Check if the ARGB software on your motherboard is installed and configured correctly.
- Ensure the ARGB cables are connected in the correct sequence if using multiple fans.
- Excessive Noise:
- Ensure the fan is securely mounted and not vibrating against the case.
- Clean any dust buildup on the fan blades.
- Check fan speed settings in BIOS/UEFI; a very high RPM can generate more noise.
6. Specifications
| Feature | Specification |
|---|---|
| Model | TL-C12CW-S |
| Dimensions | 120mm x 120mm x 25mm |
| Speed | 1500 RPM ±10% |
| Noise Level | ≤ 25.6 dBA |
| Airflow | 66.17 CFM |
| Air Pressure | 1.53 mm H2O |
| Power Connector | 4-pin PWM |
| ARGB Connector | +5V 3-pin ARGB |
| Voltage | 12 Volts |
| Current | 0.20 A |
| Power | 2.4 Watts |
| Bearing Type | S-FDB Bearing |
| Material | PBT+PC Plastic |
| Compatible Devices | Computer |
| Manufacturer Part Number | C12CW-S X3-D5 |
| Country of Origin | China |


7. What's in the Box
The package includes:
- Thermalright TL-C12CW-S CPU Fan (quantity as purchased, e.g., 3 fans for X3 model)
- Mounting Screws
- PWM Signal Sync Cables
- ARGB Lighting Sync Cables
8. Warranty and Support
For warranty information and technical support, please refer to the official Thermalright website or contact your retailer. Keep your purchase receipt for warranty claims.