1. Introduction
The A4Tech KR-92 is a full-size wired keyboard designed for office and general computer use. It features a 104-key layout, ergonomic design, and a splash-proof construction for enhanced durability. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your keyboard.

Figure 1: A4Tech KR-92 Wired Keyboard
2. Package Contents
Please check the package for the following items:
- A4Tech KR-92 Wired Keyboard
- User Manual (this document)

Figure 2: Keyboard and USB cable in packaging
3. Setup Instructions
Follow these steps to set up your A4Tech KR-92 keyboard:
- Unpack the Keyboard: Carefully remove the keyboard from its packaging.
- Connect to Computer: Locate an available USB port on your computer. Insert the USB connector of the KR-92 keyboard into the USB port.
- System Recognition: Your operating system (Windows) should automatically detect and install the necessary drivers for the keyboard. This is a plug-and-play device and does not require additional driver software.
- Position the Keyboard: Place the keyboard on a stable, flat surface. You can adjust the typing angle using the two-stage tripod feet located on the underside of the keyboard.

Figure 3: Ergonomic design with two-stage tripod for adjustable height
4. Operating the Keyboard
The A4Tech KR-92 keyboard features a standard 104-key English layout, designed for comfortable and efficient typing.
4.1 Key Features
- Arc Keycaps: Streamlined rounded keycap structure for a more comfortable operating experience.
- Ergonomic Design: Adjustable tripod height to enhance typing comfort.
- Splash-Proof Design: The keyboard membrane circuit is specially sealed to reduce the risk of water damage from accidental spills.
- Laser Engraved Keycaps: Ensures durability and prevents key legends from fading.
- Reinforced Space Bar: Triple reinforced design for lasting durability.
- FN Key Combinations: Access multimedia functions and shortcuts using the FN key in combination with F1-F12 keys.

Figure 4: Arc Keycap design for comfortable typing

Figure 5: Splash-proof design
4.2 FN Key Functions
The FN key, located near the right Alt key, can be combined with the F1-F12 keys to access various multimedia and system functions. Look for the icons printed on the F-keys to identify their secondary functions.

Figure 6: FN key combinations for multimedia control
5. Maintenance
To ensure the longevity and optimal performance of your 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 slightly damp cloth with a mild cleaning solution. Ensure the keyboard is disconnected from the computer before cleaning.
- Spill Management: While the keyboard has a splash-proof design, it is not fully waterproof. In case of a liquid spill, immediately disconnect the keyboard from your computer, turn it upside down to drain any liquid, and allow it to dry completely before reconnecting.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Force: Do not apply excessive force to the keys or attempt to remove keycaps unless necessary for cleaning.
6. Troubleshooting
If you encounter issues with your A4Tech KR-92 keyboard, try the following troubleshooting steps:
- Keyboard Not Responding:
- Ensure the USB cable is securely plugged into a working USB port on your computer.
- Try plugging the keyboard into a different USB port.
- Restart your computer.
- Test the keyboard on another computer to determine if the issue is with the keyboard or your system.
- Specific Keys Not Working:
- Check for any debris or foreign objects lodged under the non-functioning keys.
- Gently clean around the affected keys.
- If the issue persists, the key mechanism might be damaged.
- Typing Lag or Delay:
- This is usually a system-related issue. Check your computer's performance and close any unnecessary applications.
- Ensure your operating system is up to date.
7. Specifications

Figure 7: Product Specifications
| Feature | Description |
|---|---|
| Model Name | KR-92 |
| Type | Single Keyboard |
| Number of Keys | 104 keys |
| Keycap Language | English |
| Connection Interface | USB |
| Connection Method | Wired |
| Material | ABS Plastic |
| Color | Black |
| Ergonomics Support | Yes (Adjustable tripod height) |
| Hand Support | No |
| Gasket Mount | No |
| Hot Swap | No |
| Lighting Effect | No |
| Multimedia Function Keys | Yes (via FN key combinations) |
| Support for Driver Software | No (Plug & Play) |
| Product Dimensions | 455mm x 150mm x 31mm (Length x Width x Height) |
| Product Weight | 564g |
| Cable Length | 1.8 meters |
| Compatible Systems | Windows 10 and above, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP |
8. User Tips
- For optimal comfort, experiment with the two-stage tripod feet to find your preferred typing angle.
- Regularly clean your keyboard to prevent dust and debris from accumulating under the keys, which can affect performance.
- Utilize the FN key combinations for quick access to media controls and other functions to enhance your workflow.
9. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact the manufacturer directly. Keep your purchase receipt as proof of purchase.





