1. Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Mecool N-J9PRO Wired Mechanical Gaming Keyboard. Designed for both office use and gaming, this full-size 104-key keyboard features responsive brown mechanical switches and customizable white backlighting.
2. Setup
The Mecool N-J9PRO keyboard is designed for simple plug-and-play functionality, requiring no additional drivers for basic operation.
2.1 Connecting the Keyboard
- Locate an available USB port on your computer (PC or Laptop).
- Insert the USB connector of the keyboard firmly into the USB port.
- The operating system will automatically detect and install the necessary drivers. The keyboard will be ready for use within a few moments.

Image: The Mecool N-J9PRO keyboard, showing its wired connection, ready for use.

Image: The keyboard integrated into a typical desktop computer setup, demonstrating its compact and functional design.
3. Operating Instructions
This section details the key features and functionalities of your Mecool N-J9PRO keyboard.
3.1 Mechanical Brown Switches
The keyboard is equipped with brown mechanical switches, offering a tactile bump without an audible click. This provides a balanced typing experience, suitable for both rapid keystrokes in gaming and comfortable, precise input for office work. The switches have a lifespan of 50 million keystrokes.

Image: A detailed view of the brown mechanical switches, highlighting their design and placement beneath the keycaps.
3.2 Anti-Ghosting and Macro Settings
The keyboard features full anti-ghosting on all keys, ensuring that every keystroke is registered accurately, even during complex key combinations in fast-paced gaming. Macro adjustment is also available, allowing users to program custom key sequences for enhanced productivity or gaming performance.
3.3 Backlighting Control
The N-J9PRO features customizable white LED backlighting. You can adjust various aspects of the backlighting using the FN key in combination with other function keys:
- 21 Backlight Modes: Cycle through different lighting patterns and effects.
- 5 Intensity Levels: Adjust the brightness of the backlight.
- 6 Speed Modes: Control the speed of dynamic lighting effects.

Image: The keyboard showcasing various white backlight patterns and brightness levels, demonstrating its customizable illumination.
3.4 Shortcut Keys (FN Combinations)
Many functions can be accessed quickly using the FN (Function) key in combination with the F1-F12 keys or other designated keys. Refer to the keycap legends for specific multimedia and system control shortcuts.

Image: A user's hands actively typing on the keyboard, illustrating its full-size layout and ergonomic design for comfortable use.

Image: Diagram illustrating the physical dimensions of the keyboard and its adjustable ergonomic tilt angle for user comfort.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your keyboard.
4.1 Cleaning the Keyboard
- Disconnect the keyboard from your computer before cleaning.
- Use a can of compressed air to remove dust and debris from between the keycaps.
- Wipe the keycaps and keyboard surface with a soft, slightly damp cloth. Avoid excessive moisture.
- For stubborn stains, a small amount of mild cleaning solution on the cloth can be used, but avoid direct application to the keyboard.
4.2 Keycap and Switch Maintenance
The keycaps can be removed for deeper cleaning or replacement. If you need to replace a switch, use a switch puller tool (not included) to carefully remove the existing switch and insert a new one. Ensure the new switch is compatible with the keyboard's hot-swappable sockets.

Image: A close-up showing a tool being used to remove a mechanical switch from the keyboard, illustrating the hot-swappable design.
5. Troubleshooting
If you encounter issues with your keyboard, refer to the following common problems and solutions:
- Keyboard Not Responding:
- Ensure the USB cable is securely connected to both the keyboard and the computer.
- Try connecting the keyboard to a different USB port on your computer.
- Restart your computer.
- Test the keyboard on another computer to determine if the issue is with the keyboard or your system.
- Backlight Not Working or Incorrectly Displaying:
- Press FN + designated backlight keys (refer to your keyboard's keycap legends) to ensure the backlight is turned on and brightness is adjusted.
- Cycle through different backlight modes to see if any mode functions correctly.
- Ensure the keyboard is receiving sufficient power from the USB port.
- Certain Keys Not Registering:
- Check for any physical obstructions or debris under the keycap.
- If the keyboard has hot-swappable switches, carefully remove and re-insert the affected switch to ensure it is properly seated.
- Clean the area around the non-functioning key.
If the problem persists after trying these steps, please contact customer support.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | MECOOL |
| Model Number | N-J9PRO |
| Color | Grey and Black with Brown Switches |
| Connectivity Technology | Wired |
| Special Features | Backlit (White LED) |
| Compatible Devices | Laptop, PC |
| Number of Keys | 104 |
| Keyboard Layout | QWERTY (US Layout) |
| Switch Type | Mechanical Brown Switches |
| Key Lifespan | 50 million keystrokes |
| Anti-Ghosting | All keys |
| Backlight Modes | 21 modes, 5 intensity levels, 6 speed modes |
| Compatibility | Win2000, Win ME, Win XP, Win 7, Win 8, Win 10 |
7. Warranty and Support
For information regarding product warranty, technical support, or any other inquiries, please contact Mecool customer service through their official website or the retailer from whom you purchased the product. Please have your model number (N-J9PRO) and purchase details ready when contacting support.





