1. Introduction
Thank you for choosing the UGREEN KU103 Mechanical Keyboard. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your new keyboard. Please read this manual carefully before use to ensure optimal performance and longevity of your device.
Figure 1: UGREEN KU103 Mechanical Keyboard Overview
Video 1: UGREEN Wired Mechanical Keyboard demonstration
2. Package Contents
Please check the package for the following items:
- UGREEN KU103 Mechanical Keyboard
- USB-A to USB-C Cable (1.6M)
- User Manual (this document)
Figure 2: Package Display
3. Setup
3.1 Connecting the Keyboard
- Locate the USB-C port on the back of the keyboard.
- Connect the provided USB-A to USB-C cable to the keyboard. The cable outlet supports 3 directions for convenient routing.
- Plug the USB-A end of the cable into an available USB port on your computer or device.
- The keyboard is plug-and-play; no additional drivers are required for most operating systems.
Figure 3: Thoughtful Design: Detachable USB-C Cable and 3-Direction Cable Outlet
3.2 Adjusting Keyboard Angle
The keyboard features two-level adjustable feet to help you find the most comfortable typing angle.
- Flip out the smaller feet for a slight incline.
- Flip out the larger feet (which include the smaller ones) for a steeper incline.
Figure 4: Adjustable Feet for Ergonomic Positioning
4. Operating Instructions
4.1 System Switching
The keyboard supports switching between Windows and Mac OS layouts:
- For Windows: Press
FN + W - For Mac OS: Press
FN + M
4.2 FN Combination Keys
The keyboard includes various FN multimedia hotkeys for enhanced functionality:
Figure 5: FN Combination Keys Functionality
4.3 LED Backlight Control
The KU103 features a monochrome LED backlight with 15 lighting effects. Use the FN key in combination with other keys to control the backlight:
- Press
FN + Altto cycle through different lighting effects. - Press
FN + ↑to increase backlight brightness. - Press
FN + ↓to decrease backlight brightness. - Press
FN + ←to slow down the lighting effect speed. - Press
FN + →to speed up the lighting effect speed.
Figure 6: LED Backlit Keyboard in Use
4.4 Anti-Ghosting
The keyboard features full keys anti-ghosting, ensuring that every keystroke is registered without any loss, even during rapid typing or complex gaming commands.
Figure 7: Full Keys Anti-ghosting in Action
5. Maintenance
To ensure the longevity and optimal performance of your UGREEN KU103 Mechanical Keyboard, follow these maintenance guidelines:
- **Cleaning:** Use a soft, dry cloth to wipe the surface of the keyboard. For deeper cleaning, you can use a can of compressed air to remove dust and debris from between the keycaps. The PBT keycaps are wear-resistant and oil-resistant, making them easy to clean.
- **Storage:** When not in use, store the keyboard in a clean, dry environment away from direct sunlight and extreme temperatures.
- **Cable Care:** Avoid bending or twisting the USB-C cable excessively to prevent damage.
6. Troubleshooting
If you encounter any issues with your keyboard, please refer to the following common solutions:
- **Keyboard not responding:**
- Ensure the USB-C cable is securely connected to both the keyboard and your computer.
- Try plugging the keyboard into a different USB port on your computer.
- Test the keyboard on another computer to rule out a computer-specific issue.
- **Keys not registering or ghosting:**
- The keyboard features full anti-ghosting. If you experience issues, ensure no debris is lodged under the keycap.
- Clean the keyboard as described in the Maintenance section.
- **Backlight not working or changing effects:**
- Ensure the keyboard is properly connected and powered.
- Try using the FN combination keys (
FN + Alt,FN + ↑/↓) to adjust the backlight settings. - **Incorrect key functions (e.g., Windows keys acting like Mac keys):**
- Verify that the system switch is set correctly for your operating system (
FN + Wfor Windows,FN + Mfor Mac OS).
7. Specifications
Figure 8: Product Specifications Overview
| Feature | Detail |
|---|---|
| Brand Name | UGREEN |
| Model Code | KU103 |
| Model Name | UGREEN Mechanical Keyboard |
| Connection Method | Wired |
| Cable Length | 1.6 Meter |
| Keys | 108 Keys (Full Size Keyboard) |
| Keycap Material | PBT plastic (Two-Color Injection Molded) |
| Keycup Printing | Doublshot |
| Switches Manufacturer | OUTEMU |
| Switch Type | Red Switch |
| Red Switch Specifications | Actuation Force: 45g, Actuation Distance: 2mm, Travel Distance: 4mm, Lower Noise: 40dB |
| Switches Hot Swap | No |
| Backlight Type | Monochrome (supports 15 lighting effects) |
| Anti-Ghosting | Full Keys Anti-ghosting |
| System Switching | FN+W (Windows); FN+M (MAC OS) |
| Driver Installation | Plug & Play |
| Compatible Systems | Windows 7/8.1/10/11, macOS 10.5 or later, iOS 15 or later, iPadOS 14 or later, Linux, ChromeOS, Android 5.0 or later, HarmonyOS |
| Dimensions (L*W*H) | 445mm * 129mm * 26mm |
| Weight | Approx. 1.1 kg |
| Certification | CE, FCC |
Figure 9: Key Features Summary
Figure 10: Wide Compatibility
8. Warranty and Support
The UGREEN KU103 Mechanical Keyboard comes with a 1-year warranty from the date of purchase. For warranty claims or technical support, please contact UGREEN customer service.
For additional information and a downloadable PDF version of the user manual, please refer to the official UGREEN support resources. The PDF manual can be found at: UGREEN KU103 User Manual (PDF)
9. User Tips
- **Switch Type:** Please note that the Red Switches on this keyboard are not hot-swappable, meaning they cannot be easily replaced without soldering.
- **Ergonomics:** Take advantage of the adjustable feet and ergonomic keycap design to maintain a comfortable typing posture and reduce fatigue during long sessions.
- **Backlight Customization:** Experiment with the 15 different monochrome lighting effects to personalize your keyboard's appearance.
