1. Introduction
The Rii RK100+ is a USB wired gaming keyboard designed for both gaming and office use. It features a mechanical-feeling design with a full 104-key layout and multiple color rainbow LED backlighting. This manual provides instructions for setting up, operating, and maintaining your keyboard.

Image 1.1: Rii RK100+ White Gaming Keyboard with illuminated rainbow backlighting.
2. Package Contents
Please check the package for the following items:
- 1 x Rii RK100+ White Gaming Keyboard
- 1 x User Manual
3. Setup
The Rii RK100+ keyboard is a plug-and-play device, requiring no additional software installation.
- Locate an available USB port on your computer, laptop, Smart TV, or compatible device.
- Insert the USB connector of the keyboard into the USB port.
- The operating system will automatically detect and install the necessary drivers. The keyboard will be ready for use shortly.

Image 3.1: Bottom view of the keyboard, highlighting the USB connector and adjustable feet.
4. Operating Instructions
4.1. Backlight Control
The keyboard features multiple color rainbow LED backlighting. Use the following key combinations to control the backlighting:
- FN + Backlight Key (Sun icon): Press this combination to turn the rainbow lighting on or off. Repeated presses will cycle through breathing light modes or turn off the backlight.
- FN + Page Up (Pg Up): Increases the LED lighting brightness.
- FN + Page Down (Pg Dn): Decreases the LED lighting brightness.

Image 4.1: Backlight control keys (FN + Backlight, FN + Pg Up, FN + Pg Dn).
4.2. Multimedia Functions
The keyboard includes dedicated multimedia functions accessible via the FN key combined with the F1-F12 keys:
- FN + F1: Play Music
- 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: Open Mailbox
- FN + F10: Open Home Page
- FN + F11: Lock Computer
- FN + F12: Open Calculator

Image 4.2: Multimedia function keys (FN + F1-F12).
4.3. Power Saving Mode
The keyboard is designed to conserve power. It will automatically enter a sleeping mode after 10 minutes of inactivity, and the backlights will turn off. Pressing any key will awaken the keyboard and reactivate the backlights.
5. Compatibility
The Rii RK100+ keyboard is compatible with a wide range of operating systems and devices:
- Windows: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP
- Other Devices: PC, Laptop, Pad, Google Android TV Box, HTPC, IPTV, Smart TV, Raspberry Pi (all versions)
Note: The backlighting feature is not supported on Mac OS and Linux OS systems.
6. Maintenance
To ensure the longevity and optimal performance of your Rii RK100+ keyboard, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the surface of the keyboard. For deeper cleaning, a slightly damp cloth can be used, ensuring no liquid enters the key switches or internal components. Avoid harsh chemicals or abrasive cleaners.
- Dust Removal: Use compressed air to remove dust and debris from between the keys.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Spills: Keep liquids away from the keyboard to prevent damage.
7. Troubleshooting
If you encounter issues with your Rii RK100+ keyboard, refer to the following common solutions:
- Keyboard Not Responding:
- Ensure the USB cable is securely connected to both the keyboard and the computer's USB port.
- Try connecting the keyboard to a different USB port on your device.
- Test the keyboard on another computer or device to determine if the issue is with the keyboard or the original device.
- Backlight Not Working:
- Press FN + Backlight Key (Sun icon) to ensure the backlight is turned on.
- Adjust brightness using FN + Page Up and FN + Page Down.
- Confirm your operating system is not Mac OS or Linux OS, as backlighting is not supported on these systems.
- Multimedia Keys Not Functioning:
- Ensure you are pressing the FN key simultaneously with the desired F-key (F1-F12).
- Check your operating system's settings for any conflicting hotkey assignments.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Rii |
| Model | RK100+ |
| Connectivity Technology | USB Wired |
| Number of Keys | 104 |
| Keyboard Layout | QWERTY |
| Switch Type | Mechanical Feeling |
| Backlight | Multiple Colors Rainbow LED |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Product Dimensions (L x W x H) | 17.1" x 5.3" x 0.9" (43.5 cm x 13.6 cm x 2.6 cm) |
| Weight | 622g |
| Included Components | USB Cable |
9. Warranty Information
The Rii RK100+ Gaming Keyboard comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper maintenance.
10. Customer Support
For further assistance, technical support, or warranty claims, please refer to the contact information provided with your purchase or visit the official Rii website. Ensure you have your product model (RK100+) and proof of purchase available when contacting support.