Introduction
The T-DAGGER Second Lieutenant TGM300 is an RGB gaming mouse designed for precision and customization. Featuring an 8,000 DPI optical sensor, 8 programmable buttons, and dynamic RGB lighting, this mouse offers an enhanced gaming experience. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your TGM300 gaming mouse.

Figure 1: Top view of the T-DAGGER Second Lieutenant TGM300 RGB Gaming Mouse, showcasing its ergonomic design and RGB lighting.
Setup
Follow these steps to set up your T-DAGGER TGM300 gaming mouse:
- Connect the Mouse: Insert the USB connector of the TGM300 mouse into an available USB port on your computer (PC or Laptop). The mouse is plug-and-play, meaning it should be recognized automatically by your operating system.
- Driver Installation: For basic functionality, no additional drivers are required. For advanced customization, including programming buttons and adjusting RGB lighting, it is recommended to download the official T-DAGGER software from the manufacturer's website.
- Initial Test: Once connected, move the mouse and click the left and right buttons to ensure basic functionality. The RGB lighting should illuminate automatically.

Figure 2: Front view of the TGM300 mouse, showing the braided USB cable connection point and scroll wheel.
Operating Instructions
The T-DAGGER TGM300 mouse features 8 buttons and adjustable DPI settings for optimal performance.
Button Functions
- Left Click Button: Standard primary click function.
- Right Click Button: Standard secondary click function.
- Scroll Wheel (Middle Button): Scroll up/down, and click for middle-button functionality.
- DPI Cycle Button: Located below the scroll wheel, this button cycles through preset DPI levels.
- Forward/Backward Buttons: Typically located on the side of the mouse, these buttons navigate forward and backward in web browsers or file explorers.
- Programmable Buttons: The remaining buttons can be customized using the T-DAGGER software for macros, key binds, or other functions.
DPI Adjustment
The TGM300 mouse supports up to 8,000 DPI. Press the DPI cycle button to switch between different sensitivity levels. Each press will change the DPI, often indicated by a change in the mouse's RGB lighting color or pattern (refer to software for specific indications).
RGB Lighting Control
The RGB lighting on the TGM300 mouse can be customized through the T-DAGGER software. This allows you to select various lighting effects, colors, and brightness levels to match your setup or preference.

Figure 3: Side view of the TGM300 mouse, highlighting the side buttons and RGB lighting strip.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your T-DAGGER TGM300 gaming mouse.
- Cleaning the Mouse: Use a soft, dry cloth to wipe the surface of the mouse. For stubborn dirt, slightly dampen the cloth with water or a mild cleaning solution. Avoid using harsh chemicals or abrasive materials.
- Cleaning the Optical Sensor: Occasionally, dust or debris may accumulate around the optical sensor on the underside of the mouse. Use a cotton swab or compressed air to gently clean the sensor area.
- Cable Care: The TGM300 features a braided USB cable. Avoid sharp bends, twists, or excessive pulling on the cable to prevent damage. Store the cable neatly when not in use.
- Storage: When not in use for extended periods, store the mouse in a clean, dry environment away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter issues with your T-DAGGER TGM300 mouse, refer to the following common problems and solutions:
- Mouse Not Responding:
- Ensure the USB cable is securely plugged into a working USB port on your computer.
- Try connecting the mouse to a different USB port.
- Restart your computer.
- Test the mouse on another computer to rule out a system-specific issue.
- DPI Adjustment Not Working:
- Ensure the T-DAGGER software is installed and running if you are trying to use custom DPI settings.
- Check if the DPI button is physically stuck or damaged.
- RGB Lighting Not Working or Incorrect:
- Verify that the T-DAGGER software is installed and that lighting effects are enabled.
- Check for any software updates for the mouse.
- Ensure the mouse is receiving sufficient power from the USB port.
- Buttons Not Responding or Malfunctioning:
- If using custom button assignments, check the settings in the T-DAGGER software.
- Ensure no other software is conflicting with mouse button inputs.
- Clean around the buttons to ensure no debris is obstructing their movement.
Specifications
| Feature | Specification |
|---|---|
| Model Number | T-TGM300 |
| Connectivity | USB (Braided Cable) |
| Mouse Type | Optical Mouse |
| DPI | Up to 8,000 DPI |
| Buttons | 8 Programmable Buttons |
| Color | Black |
| Movement Detection | Optical |
| Hand Orientation | Ambidextrous |
| Recommended Uses | Gaming |
| Compatible Devices | Personal Computer, Laptop |
| Operating System Compatibility | Windows XP, Linux |
| Package Dimensions | 20 x 13 x 5.4 cm |
| Item Weight | 200 g |
Warranty and Support
T-DAGGER products are manufactured to high-quality standards. This product is covered by a limited warranty against defects in materials and workmanship. Please refer to the warranty card included with your purchase or visit the official T-DAGGER website for detailed warranty terms and conditions.
For technical support, driver downloads, or further assistance, please visit the official T-DAGGER support page or contact their customer service. Keep your purchase receipt as proof of purchase for warranty claims.
Note: Warranty terms may vary by region.




