Gembird 8541647064
G-CUBE Illuminate Backlit Gaming Keyboard User Manual
Model: 8541647064 | Brand: Gembird
Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your G-CUBE Illuminate Backlit Gaming Keyboard. Please read this manual thoroughly to ensure proper use and to maximize your keyboard's performance and lifespan.

Figure 1: G-CUBE Illuminate Backlit Gaming Keyboard (Top View)
Key Features
- Backlit Illumination: Features dual-color (blue and white) LED backlighting for enhanced visibility in low-light conditions.
- Ultra Slim Design: Engineered for portability and comfortable typing.
- Dedicated Gaming Keys: Includes 8 specific gaming keys with blue LED for quick access during gameplay.
- Multimedia & Internet Functions: Easy access to 12 multimedia and internet functions via FN (Function) keys.
- Adjustable Height: Equipped with adjustable tilt legs for ergonomic comfort.
Setup Guide
- Unpacking: Carefully remove the keyboard from its packaging. Ensure all components are present.
- Connection: Plug the USB connector of the keyboard into an available USB port on your computer. The keyboard is plug-and-play and typically requires no additional driver installation.
- Initial Power-On: The keyboard's LED backlighting should illuminate automatically upon successful connection.
- Adjusting Height: For optimal typing comfort, you may extend the adjustable tilt legs located on the underside of the keyboard.

Figure 2: Adjustable Tilt Legs for Ergonomic Positioning
Operating Instructions
LED Backlight Control
- Brightness Adjustment: The keyboard features 9 levels of LED brightness. Adjust by pressing Fn + ↑ (up arrow) to increase brightness and Fn + ↓ (down arrow) to decrease brightness.
- LED Color Switch: Toggle between Blue and Blue-White LED illumination by pressing the dedicated 2-Color LED Switch key.
- LED On/Off: To turn the LED backlighting on or off, press the Fennecs key.
Function (FN) Keys
The FN key, when pressed in combination with the F1-F12 keys, provides quick access to various multimedia and internet functions:
| Key Combination | Function |
|---|---|
| Fn + F1 | Start Music |
| Fn + F2 | Volume Down |
| Fn + F3 | Volume Up |
| Fn + F4 | Mute Music |
| Fn + F5 | Play Previous Track |
| Fn + F6 | Play Next Track |
| Fn + F7 | Play/Pause Media |
| Fn + F8 | Stop Playing |
| Fn + F9 | Open Web Browser |
| Fn + F10 | Open E-Mail Client |
| Fn + F11 | Open My Computer |
| Fn + F12 | Open Favorites |
Gaming Keys
The keyboard highlights 8 specific gaming keys with blue LED for quick identification and enhanced gaming experience. These keys are: A, S, W, D, ↑ (Up Arrow), ↓ (Down Arrow), ← (Left Arrow), → (Right Arrow).

Figure 3: Gaming Keys (WASD and Arrow Keys)
- Lock Window Key: To prevent accidental interruptions during gaming, you can lock the Windows key by pressing Fn + Window Key. Press again to unlock.
Maintenance
- Cleaning: Use a soft, dry cloth to wipe the keyboard surface. For deeper cleaning, a can of compressed air can be used to remove dust and debris from between the keys. Avoid using liquid cleaners directly on the keyboard.
- Storage: When not in use for extended periods, store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping the keyboard or exposing it to excessive force, which can damage internal components or keycaps.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding | Loose USB connection, faulty USB port, driver issue. |
|
| LED backlight not working | LEDs turned off, brightness set to minimum. |
|
| Function keys (Fn combinations) not working | Incorrect key combination, software conflict. |
|
| Windows key is locked | Windows key lock feature is active. | Press Fn + Window Key to unlock. |
Specifications
- Brand: Gembird
- Model Number: 8541647064
- Hardware Platform: PC
- Connectivity Technology: USB
- Keyboard Description: Gaming
- Special Feature: Backlit (Blue and White LED)
- Item Weight: 1.9 pounds
- Product Dimensions: 18.5 x 8.5 x 2 inches (LxWxH)
- Power Source: USB Powered
- Manufacturer: G-Cube
- LED Life Cycle: More than 25,000 hours
- Material: Plastic
Warranty and Support
For warranty information and technical support, please refer to the official Gembird website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.
For further assistance, you may visit the Gembird brand page on Amazon or contact the seller directly.
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