Introduction
Thank you for choosing the Havit KB866L Wired RGB Backlit Membrane FN Multi-Function Gaming Keyboard. This manual provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your new keyboard. Please read this manual carefully to ensure optimal performance and longevity of your device.
Product Overview
The Havit KB866L is a high-performance gaming keyboard designed for an immersive gaming and typing experience. It features vibrant RGB backlighting, multi-function FN keys, and a durable membrane design.

Figure 1: Top-down view of the Havit KB866L Wired RGB Backlit Gaming Keyboard, showing its full layout and USB connector.

Figure 2: The keyboard's dynamic RGB backlighting, featuring 7 gradient tones. The backlight can be toggled on or off using a dedicated key combination.

Figure 3: Side profile of the Havit KB866L, illustrating its ergonomic design for comfortable typing and gaming sessions.

Figure 4: Dimensions of the Havit KB866L keyboard, measuring approximately 46 cm in length, 15 cm in width, and 2.5 cm in height. The integrated USB cable is 145 cm long.

Figure 5: The underside of the keyboard, featuring an illuminated base, reclinable feet for adjustable typing angles, and anti-slip rubber pads for stability.

Figure 6: Detail showing the durability of the keyboard keys, rated for up to 5,000,000 key presses per key.

Figure 7: The Havit KB866L is a wired keyboard, ensuring a stable and responsive connection for all your computing needs.
Setup
- Unpack: Carefully remove the keyboard from its packaging.
- Connect: Plug the USB-A connector of the keyboard into an available USB port on your computer (PC or Laptop).
- Driver Installation: The keyboard is plug-and-play. Your operating system (e.g., Windows 10) will automatically detect and install the necessary drivers. No manual driver installation is required.
- Placement: Place the keyboard on a stable, flat surface. You may adjust the reclinable feet on the underside for a more comfortable typing angle.
Operating Instructions
Basic Functions
- Typing: Use the standard QWERTY layout for typing.
- Numeric Keypad: Utilize the dedicated numeric keypad for data entry.
FN Multi-Function Keys
The keyboard features FN (Function) key combinations to access various multimedia and system controls. Press and hold the FN key, then press the corresponding F-key:
- FN + F1: Media Player
- FN + F2: Volume Down
- FN + F3: Volume Up
- FN + F4: Mute
- FN + F5: Stop
- FN + F6: Previous Track
- FN + F7: Play/Pause
- FN + F8: Next Track
- FN + F9: Email
- FN + F10: Web Browser
- FN + F11: My Computer
- FN + F12: Calculator
Backlight Control
- Backlight On/Off: Locate the dedicated backlight key (often indicated by a sun or lightbulb icon, typically near Scroll Lock or Pause Break) and press it to toggle the RGB backlighting on or off.
- Brightness Adjustment: (If applicable, not explicitly stated but common) Some keyboards allow brightness adjustment using FN + Page Up/Page Down or similar combinations. Refer to the keyboard's specific markings.
- Mode Switching: (If applicable) Some RGB keyboards offer different lighting modes. These are usually cycled through by pressing the backlight key repeatedly or using FN + specific keys (e.g., FN + Insert, Home, Page Up).
Maintenance
- Cleaning:
- Disconnect the keyboard from your computer before cleaning.
- Use a soft, dry cloth to wipe the surface of the keyboard.
- For dust and debris between keys, use compressed air.
- Avoid using harsh chemicals, abrasive cleaners, or excessive moisture.
- Storage: When not in use for extended periods, store the keyboard in a clean, dry environment away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping the keyboard or exposing it to liquids, as this can cause permanent damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding. | Loose USB connection, faulty USB port, driver issue. |
|
| Backlight not working. | Backlight turned off, software glitch. |
|
| Certain keys not working. | Debris under key, physical damage. |
|
Specifications
| Feature | Detail |
|---|---|
| Brand | Havit |
| Model | KB866L |
| Connectivity Technology | Wired (USB-A) |
| Keyboard Type | Membrane |
| Backlighting | RGB Backlit |
| Number of Keys | 104 |
| Compatible Devices | PC, Laptop |
| Operating System | Windows 10 (and compatible with other Windows versions) |
| Material | Plastic |
| Dimensions (L x W x H) | Approx. 46 cm x 15 cm x 2.5 cm |
| Cable Length | 145 cm |
| Key Durability | 5,000,000 key presses per key |
Warranty and Support
For warranty information and technical support, please refer to the warranty card included with your product or visit the official Havit website. Keep your purchase receipt as proof of purchase for any warranty claims.
If you encounter any issues not covered in this manual, please contact Havit customer service for assistance.





