1. Introduction
Thank you for choosing the Thermalright TL-M12Q 120mm CPU Fan. This fan is designed to provide efficient and quiet cooling for your computer system, featuring an S-FDB bearing for durability, PWM intelligent temperature control, and ARGB mirror light effects. This manual provides essential information for proper installation, operation, and maintenance of your fan.

Image 1.1: Thermalright TL-M12Q 120mm Infinite Mirror ARGB Fan.
2. Product Features
- S-FDB Magnetic Stable Bearing: Ensures stable fan blade operation, especially in various mounting orientations. The sealed structure provides durability and is maintenance-free.
- PWM Intelligent Temperature Control: Automatically adjusts fan speed based on system temperature when connected to a compatible motherboard header, eliminating the need for manual adjustments.
- High Performance for Heat Dissipation: Features a 7-blade design capable of reaching 2000 RPM, delivering 68.9 CFM airflow with a low noise level of ≤ 28.2 dB(A). Soft silicone corner pads further reduce noise and vibration.
- Optimized Construction: Constructed from UL CLASSA insulation grade industrial-strength PBT+PC material. Supports PWM series control and features a 4-pin PWM power interface and a 3-pin ARGB lighting interface. Fans can be connected in series via buckles for streamlined wiring.
- Versatile Application: Suitable for use as a case fan or paired with a CPU cooler to enhance overall system cooling.

Image 2.1: The TL-M12Q fan highlighting its 7-blade design and connection cables.

Image 2.2: Detail of the S-FDB bearing and soft-touch rubber pads for vibration absorption.

Image 2.3: The fan's infinity mirror ARGB lighting effect.
3. Setup and Installation
Follow these steps for proper installation of your Thermalright TL-M12Q fans. For visual guidance, please refer to the installation video below.
3.1 Connecting Multiple Fans
- Align the fan clip of one fan to the wide side of the install slot on another fan.
- Attach the two fans together by gently pushing them.
- Slide the fans to lock them in place. To unlock, slide in the opposite direction.
- After fans are locked together, connect the fan cable to the designated slot. Slide the cable in the opposite direction to unlock it.
- Ensure all fans are securely connected before proceeding to motherboard wiring.
3.2 Motherboard Connections
- Connect the 4-pin PWM cable from the fan assembly to a 4-pin chassis fan header on your motherboard. This enables intelligent temperature control.
- Connect the 3-pin ARGB cable from the fan assembly to a 3-pin 5V ARGB header on your motherboard to synchronize lighting effects. When not in use, ensure the pin lid is on to prevent short circuits.
3.3 Installation Video Guide
Watch this official video for a detailed guide on connecting and installing your Thermalright TL-M12Q fans.
Video 3.1: Thermalright TL-M12Q Easy Connect Fan Guide. This video demonstrates how to connect multiple fans and wire them to the motherboard for power and ARGB synchronization.
4. Operating Instructions
4.1 Fan Speed Control (PWM)
Once connected to a 4-pin PWM header on your motherboard, the fan speed will automatically adjust based on your system's temperature. You can typically configure fan curves and profiles through your motherboard's BIOS/UEFI settings or dedicated software provided by your motherboard manufacturer.
4.2 ARGB Lighting Control
The fan's ARGB lighting can be controlled via your motherboard's 3-pin 5V ARGB header. Use your motherboard's RGB control software (e.g., ASUS Aura Sync, MSI Mystic Light Sync, Gigabyte RGB Fusion, ASRock Polychrome Sync) to customize lighting effects, colors, and patterns. Ensure your motherboard supports 5V ARGB (Addressable RGB) and not 12V RGB.

Image 4.1: The TL-M12Q fan's ARGB lighting and key performance metrics.
5. Maintenance
The Thermalright TL-M12Q fan features an S-FDB bearing designed for long-term, maintenance-free operation. It does not require additional lubrication. To ensure optimal performance and longevity:
- Cleaning: Periodically clean the fan blades and frame to remove dust buildup. Use compressed air or a soft brush. Ensure the system is powered off before cleaning.
- Avoid Disassembly: Do not attempt to disassemble the fan. Disassembly may damage the bearing and void the warranty.
- Cable Management: Ensure cables are neatly routed and not obstructing fan blades or airflow.
6. Troubleshooting
If you encounter issues with your Thermalright TL-M12Q fan, refer to the following common troubleshooting steps:
- Fan Not Spinning:
- Check if the 4-pin PWM cable is securely connected to the motherboard's fan header.
- Verify that the fan header is enabled in the motherboard's BIOS/UEFI settings.
- Ensure the system is receiving adequate power.
- ARGB Lights Not Working:
- Confirm the 3-pin ARGB cable is correctly connected to a 5V ARGB header on the motherboard.
- Check your motherboard's RGB software to ensure lighting effects are enabled and configured.
- Ensure the ARGB header is not a 12V RGB header, as this fan requires 5V ARGB.
- Verify that the pin lid is removed from the 3-pin ARGB connector if it's the last in a series.
- Unusual Noise:
- Check for any cables or obstructions hitting the fan blades.
- Ensure the fan is securely mounted and the silicone pads are properly seated to reduce vibration.
- If the noise persists and is excessive, contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Model | TL-M12Q |
| Product Dimensions | 4.88"L x 4.72"W x 0.98"H (124mm x 120mm x 25mm) |
| Brand | Thermalright |
| Power Connector Type | 4-Pin PWM |
| ARGB Connector Type | 3-Pin 5V ARGB |
| Wattage | 2.04 watts |
| Cooling Method | Air |
| Compatible Devices | Desktop |
| Noise Level | ≤ 28.2 Decibels (A) |
| Material | Polybutylene Terephthalate, Polycarbonate, Silicone |
| Maximum Rotational Speed | 2000 RPM |
| Air Flow Capacity | 68.9 Cubic Feet Per Minute (CFM) |
| Bearing Type | S-FDB (Fluid Dynamic Bearing) |
| Item Weight | 100 Grams |
| Included Components | CPU Liquid Cooler (Note: This fan is compatible with CPU liquid coolers, but the fan itself is an air cooling component.) |
8. Warranty and Support
Thermalright products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the official Thermalright website or contact your local retailer. Keep your proof of purchase for warranty claims.





