1. Introduction
The UGREEN KU101 is an 84-key mechanical keyboard designed for versatility and comfort. It offers dual connection modes (Bluetooth 5.0 wireless and USB-C wired) and can connect to up to four devices simultaneously. Featuring tactile brown switches, a monochrome backlight with 15 effects, and an ergonomic 6° tilt, this keyboard is suitable for various operating systems including Windows, macOS, iOS, Android, and HarmonyOS.

Image: UGREEN KU101 Mechanical Keyboard overview.
2. Package Contents
Please check the box for the following items:
- UGREEN KU101 Mechanical Keyboard
- USB-A to USB-C Connection Cable (1.6M)
- Key Puller
- 6 x Mac System Keycaps (for customization)
- User Manual (this document)
- Product Warranty Card

Image: All items included in the UGREEN KU101 keyboard package.
3. Specifications
| Feature | Description |
|---|---|
| Brand Name | UGREEN |
| Product Name | 84-Key Mechanical Keyboard |
| Model Number | KU101 |
| Connection Modes | Bluetooth 5.0 Wireless + USB C Wired |
| Attached Cable | USB-A to USB-C (1.6M) |
| Bluetooth Working Range | 10M |
| Cable Interface | USB-C |
| Number of Keys | 84 keys |
| Key Life | 50,000,000 Times |
| Switch Type | Brown Tactile Switches (Hot-swappable) |
| Backlight Type | Monochrome (15 moving lighting effects) |
| Battery Type | Lithium Polymer Battery |
| Rated Battery Capacity | 1800mAh |
| Charging Time | 2.5 Hours |
| Battery Life | Approx. 180 Hours (lights off); Approx. 15 Hours (lights on) |
| System Compatibility | Windows 7/8.1/10/11, macOS 10.15+, iOS 13.4+, iPad OS 14.0+, Linux, Chrome OS, Android 5.0+ |
| Package Size | 313*124*25mm |
| Weight | 1040g |
4. Setup
4.1 Power On/Off and System Switch
Locate the switches on the bottom of the keyboard:
- On/Off Switch: Slide to 'On' to power on the keyboard.
- Win/Mac Switch: Slide to 'Win' for Windows/Android/Linux/Chrome OS, or 'Mac' for macOS/iOS/iPad OS. This ensures correct key mapping.

Image: Power and System Mode Switches.
4.2 Connection Modes
The UGREEN KU101 keyboard supports two connection methods: Bluetooth 5.0 wireless and USB-C wired. It can connect to up to 4 devices simultaneously and switch between them easily.
4.2.1 Bluetooth Wireless Connection
- Ensure the keyboard is powered on and the system switch is set correctly for your device.
- On your device (PC, laptop, tablet, phone), go to Bluetooth settings.
- Press and hold the
Fnkey and one of the Bluetooth keys (e.g.,Fn + 1,Fn + 2,Fn + 3) for 3-5 seconds until the indicator light flashes, indicating pairing mode. - Select "UGREEN KU101" from the list of available Bluetooth devices on your screen.
- Once connected, the indicator light will stop flashing. Repeat for up to three Bluetooth devices.
4.2.2 USB-C Wired Connection
- Connect one end of the provided USB-A to USB-C cable to the keyboard's USB-C port.
- Connect the other end (USB-A) to an available USB port on your computer.
- The keyboard will be automatically recognized and ready for use.
- To switch to wired mode from Bluetooth, press
Fn + 4.

Image: Connecting up to 4 devices simultaneously.
4.3 System Compatibility
The keyboard is compatible with a wide range of operating systems:
- Windows 7/8.1/10/11
- macOS 10.15 and later
- iOS 13.4 and later
- iPad OS 14.0 and later
- Linux
- Chrome OS
- Android 5.0 and later
Note: Windows 7 only supports Bluetooth 3.0. The keyboard includes 6 exclusive keycaps for Mac systems for enhanced convenience.

Image: Multiple System Compatibility.
5. Operation
5.1 Brown Tactile Switches
The UGREEN KU101 features brown tactile mechanical switches. These switches offer a noticeable bump at the actuation point, providing tactile feedback without the loud click of blue switches. They also provide resistance when fully pressed, making them a balanced choice for both typing and gaming.

Image: Brown Tactile Switches.
5.2 Backlight Effects
The keyboard offers 15 kinds of monochrome moving lighting effects to enhance your typing experience and create a relaxed atmosphere. Use the designated function keys to cycle through these effects and adjust brightness.

Image: 15 Kinds of Moving Lighting Effects.
5.3 Ergonomics
The keyboard is designed with a 6° tilt angle, which forms an ergonomic position with the desktop to help relieve hand fatigue during long-term use. The mushroom-shaped keycaps also contribute to typing comfort.

Image: 6° Ergonomics design.
5.4 Exclusive Emoji Key
The keyboard features an exclusive emoji key (PGDN) that allows for one-click automatic pop-up of various expressions and symbols, adding a fun element to your communication.

Image: Exclusive Emoji Key functionality.
5.5 Multi Shortcut Keys
The keyboard is equipped with multiple shortcut keys for faster and easier operation, including media controls and brightness adjustments. Refer to the keyboard layout for specific functions (e.g., F1-F10 for various controls).

Image: Multi Shortcut Keys for various functions.
5.6 Fast and Sensitive Response
The keyboard supports various combinations of keys to be pressed simultaneously without conflict, ensuring fast and sensitive response, reducing lag and errors during intense typing or gaming sessions.

Image: Fast and Sensitive Response.
5.7 Auto Sleep Mode
To conserve battery life, the keyboard features an auto-sleep mode. It will enter sleep mode after a period of inactivity. The keyboard utilizes a dual design of a Type-C charging interface and a lithium battery for efficient power management.

Image: Auto Sleep Mode and Type-C Charging.
5.8 Unboxing and Setup Video
Video: Official unboxing and initial setup guide for the UGREEN KU101 keyboard.
6. Maintenance
To ensure the longevity and optimal performance of your UGREEN KU101 keyboard, follow these maintenance guidelines:
- Cleaning: Regularly clean the keycaps and spaces between keys using a soft brush or compressed air to remove dust and debris. For stubborn stains, use a slightly damp, lint-free cloth. Avoid excessive moisture.
- Storage: Store the keyboard in a dry, cool place away from direct sunlight and extreme temperatures.
- Avoid Spills: Keep liquids away from the keyboard to prevent damage to internal components.
- Cable Care: Handle the USB-C cable gently. Avoid sharp bends or pulling forcefully to prevent damage to the cable or ports.
- Battery: For optimal battery health, avoid fully discharging the keyboard frequently. Charge it when the battery low indicator appears.
7. Troubleshooting
If you encounter issues with your UGREEN KU101 keyboard, try the following solutions:
- Keyboard not responding (Wired):
- Ensure the USB-C cable is securely connected to both the keyboard and your computer.
- Try a different USB port on your computer.
- Test with a different USB-C cable if available.
- Ensure the keyboard is in wired mode (
Fn + 4).
- Keyboard not responding (Bluetooth):
- Ensure the keyboard is powered on and the system switch is set correctly.
- Check if Bluetooth is enabled on your device.
- Re-pair the keyboard with your device (refer to Section 4.2.1).
- Ensure the keyboard is selected as the active Bluetooth device (
Fn + 1/2/3). - Move the keyboard closer to your device to rule out range issues.
- Check the keyboard's battery level.
- Keys not typing correctly:
- Ensure the correct system mode (Win/Mac) is selected on the keyboard.
- Clean around the affected keys to remove any obstructions.
- If using Mac, ensure the correct Mac keycaps are installed if desired.
- Backlight not working:
- Check the keyboard's battery level.
- Use the backlight control shortcut keys (e.g.,
Fn + F1/F2for brightness, other Fn combinations for effects) to adjust.
- Keyboard frequently disconnects:
- Ensure the keyboard is fully charged.
- Reduce interference by moving away from other wireless devices.
- Update Bluetooth drivers on your computer if applicable.
8. User Tips
- Multi-Device Workflow: Take full advantage of the 4-device connectivity. Assign different devices (e.g., desktop, laptop, tablet) to Bluetooth channels 1, 2, and 3, and use wired mode for a primary PC. This allows for seamless switching with
Fn + 1/2/3/4. - Customizing for Mac: If you are a Mac user, consider replacing the default Windows keycaps with the provided Mac-specific keycaps using the key puller for a more familiar layout.
- Battery Management: While the keyboard has a good battery life, remember to charge it regularly, especially if you use the backlight frequently, as this significantly impacts battery duration.
- Ergonomic Setup: Position the keyboard and your monitor to maintain a comfortable posture, utilizing the keyboard's 6° tilt to reduce wrist strain.
9. Warranty & Support
Your UGREEN KU101 Mechanical Keyboard comes with a product warranty. Please refer to the included Product Warranty Card for details regarding warranty coverage, terms, and conditions. For technical support or further assistance, please contact UGREEN customer service through their official channels.





