Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Cosmic Byte CB-GK-26 Pandora Mechanical Keyboard. Please read this manual thoroughly to ensure optimal performance and longevity of your device.

Image: Top-down view of the Cosmic Byte CB-GK-26 Pandora Mechanical Keyboard, showcasing its compact layout and rainbow LED backlighting.
Setup Instructions
- Unpacking: Carefully remove the keyboard and any included accessories (such as the key puller and switch puller) from the packaging.
- Connection: Connect the keyboard's USB-A cable to an available USB port on your computer (PC or Laptop).
- Driver Installation: The keyboard is plug-and-play and typically does not require additional driver installation for basic functionality. Your operating system (e.g., Windows 10) should automatically recognize the device.
- Initial Test: Open a text editor or any application to verify that key presses are registered correctly.
Operating Instructions
Key Features
- Compact Design: This is a TKL (Tenkeyless) mechanical keyboard with 87 keys, offering a space-saving design without a dedicated number pad.
- Outemu Red Switches: Equipped with Outemu Red mechanical switches, known for their linear and quiet operation, suitable for both typing and gaming.
- Durable Keycaps: Features injection-molded double-shot keycaps for enhanced durability and resistance to wear.
- Anti-Ghosting: Supports simultaneous operation for all keys without any key ghosting effects, ensuring every keystroke is registered accurately.
- High Polling Rate: Operates at a 1000 Hz polling rate for rapid response times.
- Long Lifespan: Each key switch is rated for over 50 million operations.

Image: The compact 87-key layout of the Cosmic Byte CB-GK-26 Pandora keyboard, highlighting its rainbow LED backlighting.
Backlight Modes and Customization
The keyboard features rainbow LED backlighting with adjustable brightness and speed, offering 20 different backlight effects.
- Adjust Brightness: Use Fn + ↑ (Up Arrow) to increase brightness and Fn + ↓ (Down Arrow) to decrease brightness.
- Adjust Speed: Use Fn + ← (Left Arrow) to slow down the effect speed and Fn + → (Right Arrow) to speed up the effect.
- Change Backlight Effect: Press Fn + INS, Fn + HOME, Fn + PGUP, Fn + DEL, Fn + END, Fn + PGDN to cycle through various preset lighting modes.
Multimedia Hotkeys
Access multimedia functions directly using the Fn key in combination with the F-keys.
- Fn + F1: My Computer
- Fn + F2: Search
- Fn + F3: Calculator
- Fn + F4: Media Player
- Fn + F5: Previous Track
- Fn + F6: Next Track
- Fn + F7: Play/Pause
- Fn + F8: Stop
- Fn + F9: Mute
- Fn + F10: Volume Down
- Fn + F11: Volume Up
- Fn + F12: Lock Keyboard

Image: Close-up of the F-keys on the Cosmic Byte CB-GK-26 Pandora keyboard, illustrating the multimedia hotkey functions.
Game Modes
The keyboard offers 8 preset game modes for optimized lighting configurations for different game types.
- Activate Game Modes: Use Fn + 1 through Fn + 8 to activate different game-specific lighting modes.

Image: The Cosmic Byte CB-GK-26 Pandora keyboard highlighting the concept of 8 distinct game modes.
Swappable Outemu Switches
The CB-GK-26 Pandora keyboard features hot-swappable Outemu switches, allowing users to change switches without soldering. This feature is compatible only with Outemu switches.
- Remove Keycap: Use the included keycap puller to gently remove the desired keycap.
- Remove Switch: Use the included switch puller to carefully grip and pull out the Outemu mechanical switch.
- Insert New Switch: Align the pins of the new Outemu switch with the holes on the PCB and press firmly until it clicks into place. Ensure pins are not bent.
- Replace Keycap: Place the keycap back onto the new switch.

Image: Diagram illustrating the four steps to swap an Outemu mechanical switch on the Cosmic Byte CB-GK-26 Pandora keyboard, including the key puller and switch puller.
Special Function Keys
- N-Key Rollover (NKRO): The keyboard supports full N-key rollover. To toggle NKRO on/off, press Fn + ScrLk. This ensures all simultaneous key presses are registered.
- Windows Key Lock: To prevent accidental presses of the Windows key during gaming or other activities, press Fn + Win to lock or unlock the Windows key.
- Full Keyboard Lock: To temporarily disable all key inputs, for example, during cleaning, press Fn + F12. Press Fn + F12 again to unlock.
Maintenance
- Cleaning: Use a soft, dry cloth to wipe the surface of the keyboard. For deeper cleaning, you can remove keycaps using the provided keycap puller and clean underneath with compressed air or a small brush. Ensure the keyboard is disconnected from the computer before cleaning.
- Avoid Liquids: Do not expose the keyboard to liquids. In case of accidental spills, immediately disconnect the keyboard and allow it to dry completely before reconnecting.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding. | Loose USB connection, faulty USB port, keyboard locked. |
|
| Backlight not working or incorrect. | Brightness set too low, incorrect mode selected, software conflict. |
|
| Keys are not registering or double-typing. | Dust/debris under keycap, faulty switch, N-key rollover issue. |
|
| Windows key is not locking/unlocking. | Incorrect key combination, temporary software glitch. |
|
Specifications
| Feature | Detail |
|---|---|
| Brand | Cosmic Byte |
| Model Number | CB-GK-26 |
| Series | Pandora |
| Color | Black |
| Keyboard Type | Mechanical, TKL (Tenkeyless) |
| Switch Type | Outemu Red (Swappable) |
| Keystroke Lifespan | 50 million+ operations per key |
| Keycaps | Injection Molded Double-shot |
| Anti-Ghosting | All-key anti-ghosting (N-Key Rollover) |
| Polling Rate | 1000 Hz |
| Backlight | Rainbow LED with 20 effects and 8 game modes |
| Connectivity | USB-A Wired |
| Compatible Operating System | Windows 10 (and generally compatible with other Windows versions, macOS, Linux) |
| Product Dimensions | 10 x 10 x 10 cm (approximate, as per provided data) |
| Item Weight | 565 g |
| Included Components | Keyboard x 1, User Manual x 1, Key Puller, Switch Puller |
Warranty and Support
For warranty information and technical support, please refer to the official Cosmic Byte website or contact their customer service. The manufacturer can be reached at 1800 31300 7700.
Please retain your purchase receipt for warranty claims.




