1. Setup
The Rii RK100+ keyboard is designed for simple plug-and-play functionality, requiring no additional drivers for basic operation. Follow these steps to connect your keyboard:
- Unpack the Keyboard: Carefully remove the keyboard from its packaging.
- Locate the USB Cable: The keyboard features an integrated USB-A cable.
- Connect to Your Device: Plug the USB-A connector into an available USB port on your PC, laptop, or compatible device.
- Automatic Recognition: Your operating system should automatically detect and configure the keyboard.

Image: Rii RK100+ keyboard with its integrated USB cable, ready for connection.
The keyboard is compatible with a wide range of operating systems, including Windows 10, Win8, Win7, Linux, Vista, IBM PC, Laptop, Pad, Google Android TV Box, HTPC, IPTV, Smart TV, Mac OS, Raspberry Pi, and Chrome OS.
Video: Demonstrates the plug-and-play functionality of the Rii RK100+ keyboard, showing it connecting to a laptop and immediately displaying its rainbow LED backlighting.
2. Operating Instructions
2.1 Backlight Control
The Rii RK100+ features a vibrant rainbow LED backlight. You can control its modes and brightness:
- Turn Backlight On/Off: Press the dedicated light key (often marked with a sun icon) located near the right Alt key. Pressing it once turns the backlight on, pressing it three times turns it off.
- Breathing Light Mode: To activate the breathing light function, press the Fn key + the Light key simultaneously. The lights will gently fade in and out.
- Adjust Brightness: While in breathing mode, press Fn + Page Up (PU+) to increase brightness or Fn + Page Down (PU-) to decrease brightness. The keyboard offers 4 levels of brightness.

Image: A close-up view of the keyboard highlighting the vibrant rainbow LED backlighting across the keys.
Video: Illustrates how to turn the backlight on/off, switch between 7 different backlight colors, and adjust the light brightness using Fn key combinations. It also shows the auto-breathing backlight mode.
2.2 Multimedia Keys
The keyboard includes 11 special multimedia key combinations for quick access to various functions:
- Fn + F1: Music Player
- Fn + F2: Volume Down
- Fn + F3: Volume Up
- Fn + F4: Mute
- Fn + F5: Stop Playback
- Fn + F6: Previous Track
- Fn + F7: Play/Pause
- Fn + F8: Next Track
- Fn + F9: Mailbox
- Fn + F10: Internet Explorer
- Fn + F11: Lock Keyboard
- Fn + F12: Calculator

Image: The keyboard layout highlighting the Fn key combinations for multimedia and system controls.
2.3 Gaming Features
The RK100+ is designed with gaming in mind:
- Anti-Ghosting: Features 19 anti-ghosting keys to ensure proper working and gaming without conflicts during simultaneous key presses.
- Windows Key Lock: To prevent accidental interruptions during gaming, you can lock the Windows key by pressing Fn + F11. Repeat the combination to unlock.
- WASD and Arrow Key Swap: For users who prefer using the Numpad for movement, this keyboard allows swapping the functionality of the WASD keys with the arrow keys. Press Fn + W to toggle this feature. Note that this will disable WASD for typing until swapped back.
Video: Demonstrates the keyboard's features including the quiet key presses, drainage holes, Windows key lock, backlight control, and the WASD to Numpad key swap function, highlighting its utility for gaming.
3. Maintenance
To ensure the longevity and optimal performance of your Rii RK100+ keyboard, follow these maintenance guidelines:
- Regular Cleaning: Use a soft, dry cloth to wipe down the keyboard surface regularly. For dust and debris between keys, use compressed air.
- Spill Management: The keyboard is designed with drainage holes to help mitigate damage from accidental spills. In case of a spill, immediately disconnect the keyboard from your computer, turn it upside down to drain any liquid, and allow it to air dry completely before reconnecting.
- Avoid Harsh Chemicals: Do not use abrasive cleaners, solvents, or strong chemicals, as these can damage the keycaps and finish.
- Proper Storage: When not in use, store the keyboard in a clean, dry environment away from extreme temperatures and direct sunlight.
4. Troubleshooting
If you encounter any issues with your Rii RK100+ keyboard, refer to the following common troubleshooting steps:
- Keyboard Not Responding:
- Ensure the USB cable is securely plugged into a functional USB port on your computer.
- Try plugging the keyboard into a different USB port or a different computer to rule out port or system issues.
- Restart your computer.
- Backlight Not Working:
- Press the dedicated light key (sun icon) to toggle the backlight on/off.
- If in breathing mode, press Fn + Light key to cycle through modes or turn it off.
- Adjust brightness using Fn + Page Up/Down.
- Keys Not Registering or Incorrect Input:
- Check if the WASD and Arrow Key Swap feature is accidentally activated (Fn + W). Toggle it off if not desired.
- Ensure the keyboard is clean and free from debris that might be obstructing key presses.
- If specific keys are not working, it might indicate a hardware issue.
- Keyboard Enters Sleeping Mode:
- The keyboard automatically enters sleeping mode if not used for 10 minutes. Press any key to awaken it and restore backlighting.
5. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 17.1 x 5.3 x 0.9 inches (43.4 x 13.5 x 2.3 cm) |
| Item Weight | 1.7 pounds (0.77 kg) |
| Manufacturer | Rii |
| Connectivity Technology | USB Wired |
| Keyboard Description | Gaming, Multimedia |
| Special Feature | Rainbow LED Backlit, Anti-Ghosting Keys, Multimedia Shortcuts |
| Color | Rainbow LED Backlit/Black keys |
| Material | Acrylonitrile Butadiene Styrene |
| Compatible Devices | PC (Windows, Linux, Mac OS, Android TV Box, etc.) |
6. Warranty and Support
For warranty information, technical support, or any product-related inquiries, please refer to the documentation included with your purchase or visit the official Rii website. Contact details for customer service are typically provided in the product packaging or on the manufacturer's support page.





