1. Introduction
Thank you for choosing the A4tech KR-92 Wired Thin Film Keyboard. This full-size keyboard is designed for comfortable and efficient use in office and gaming environments, featuring an ergonomic design, durable construction, and splash-proof capabilities. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your keyboard.
2. Key Features
- Full-Size 104-Key Layout: Standard keyboard layout for comprehensive functionality.
- Ergonomic Design: Features a two-stage adjustable tripod for customizable typing angles, promoting comfort during extended use.
- Durable ABS Plastic Construction: Ensures longevity and a robust feel.
- Membrane Operation Style: Provides a quiet and responsive typing experience.
- Splash-Proof Design: The keyboard's membrane circuit is sealed to reduce the risk of damage from accidental spills.
- Laser Engraved Keycaps: Ensures long-lasting key legends that resist fading.
- Rounded Keycaps (Arc Keycap): Streamlined and comfortable keycap structure for a pleasant typing experience.
- Reinforced Space Bar: Triple-reinforced design for enhanced durability and stability.
- FN Key Combinations: Access to multimedia and other functions via FN key shortcuts.
- Wired Connectivity: Reliable USB and PS/2 interface options for stable connection.






3. Specifications
| Feature | Detail |
|---|---|
| Brand | A4Tech |
| Model | KR-92 |
| Keycup Material | ABS Plastic |
| Operation Style | Membrane |
| Keyboard Standard | 104 Keys (Full Size) |
| Interface Type | USB, PS/2 |
| Connectivity | Wired |
| Backlight | No Backlight |
| Wrist Support | No |
| Ergonomics Support | Yes (Adjustable Tripod) |
| Multimedia Function Keys | Via FN Key Combinations |
| Compatible Platforms | Windows (Windows 10 and above, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP) |
| Product Weight | 564g (approx.) |
| Product Dimensions | 455mm x 150mm x 31mm (approx.) |
| Cable Length | 1.8 meters |
| Color | Black |
| Certification | CE |
| Special Features | Splash-proof design, Laser Engraved Keycaps, Rounded Keycaps, Reinforced Space Bar |

4. Package Contents
The A4tech KR-92 keyboard package typically includes:
- A4tech KR-92 Wired Thin Film Keyboard
- User Manual (this document)

5. Setup Instructions
Connecting your A4tech KR-92 keyboard is straightforward. Follow these steps to get started:
- Connect to Computer: Locate an available USB or PS/2 port on your computer. Insert the keyboard's connector firmly into the chosen port.
- Driver Installation (Automatic): The keyboard is plug-and-play. Your operating system (Windows) should automatically detect and install the necessary drivers without any manual intervention.
- Verify Connection: Once connected, test the keyboard by typing in a text editor or browser to ensure all keys are functioning correctly.

6. Operating Instructions
The A4tech KR-92 keyboard offers standard typing functionality along with ergonomic adjustments and multimedia shortcuts.
6.1 Ergonomic Adjustment
The keyboard features a two-stage adjustable tripod on its underside. Gently flip out the desired stage of the tripod stands to adjust the keyboard's tilt for a more comfortable typing posture that suits your preference.
6.2 FN Key Combinations
This keyboard supports FN key combinations for various functions. While specific functions are not detailed, typically these involve holding down the 'FN' key and pressing one of the F1-F12 keys or other designated keys to activate multimedia controls (e.g., volume up/down, play/pause, mute) or other system shortcuts.

7. Maintenance
Proper care and maintenance will help extend the life and performance of your A4tech KR-92 keyboard.
- Cleaning: Use a soft, slightly damp cloth to wipe the surface of the keyboard. For deeper cleaning, use compressed air to remove dust and debris from between the keys. Avoid using harsh chemicals or abrasive cleaners.
- Spill Management: While the keyboard has a splash-proof design, it is not fully waterproof. In case of an accidental spill, immediately disconnect the keyboard from your computer, wipe off any liquid, and allow it to dry completely in a well-ventilated area before reconnecting.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
8. Troubleshooting
If you encounter any issues with your A4tech KR-92 keyboard, please refer to the following common troubleshooting steps:
8.1 Keyboard Not Responding
- Check Connection: Ensure the USB/PS/2 cable is securely plugged into the correct port on your computer. Try unplugging and re-plugging the cable.
- Try Different Port: Connect the keyboard to a different USB or PS/2 port on your computer to rule out a faulty port.
- Restart Computer: Sometimes a simple system restart can resolve temporary connectivity issues.
- Test on Another Computer: If possible, test the keyboard on another computer to determine if the issue is with the keyboard itself or your computer's hardware/software.
8.2 Specific Keys Not Working
- Clean Keys: Check for any debris, dust, or obstructions under the non-functioning keys. Use compressed air to clear them out.
- Software Conflict: Ensure no software, game, or background application is interfering with keyboard input or remapping keys.
9. User Tips
To enhance your experience with the A4tech KR-92 keyboard, consider these user tips:
- Optimize Ergonomics: Take advantage of the two-stage adjustable tripod. Experiment with both settings to find the most comfortable typing angle that reduces strain on your wrists and hands during long sessions.
- Regular Cleaning for Longevity: Given its membrane design, regular use of compressed air to clear dust and crumbs from between the keys can significantly help maintain key responsiveness and prevent issues over time.
10. Warranty and Support
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your proof of purchase for any warranty claims.





