Introduction
The RisoPhy PC425 Wireless Gaming Keyboard is designed to enhance your typing and gaming experience with its versatile features and ergonomic design. This compact 65% layout mechanical keyboard boasts a unique dual-color injection molded keycap design with vibrant RGB LED backlighting. Its gasket-mounted structure and sound-absorbing design ensure a quiet yet satisfying keystroke.
Key features include triple-mode connectivity, a convenient volume knob, and full-key anti-ghosting technology for precise input.

Figure 1: RisoPhy PC425 Wireless Gaming Keyboard
Setup
Connectivity Options
The RisoPhy PC425 keyboard offers three versatile connectivity modes:
- 2.4GHz Wireless: For a stable and fast wireless connection using the included USB dongle.
- Bluetooth 5.0: Connects to up to three devices, offering seamless switching.
- USB-C Wired: Provides a reliable wired connection and charges the keyboard.

Figure 2: Triple-Mode Smart Connection
To switch between modes, locate the switch on the underside of the keyboard. For 2.4GHz wireless, ensure the USB dongle is plugged into your device. For Bluetooth, activate Bluetooth on your device and pair with the keyboard. For wired mode, connect the USB-C cable to the keyboard and your device.
Driver Installation
For full customization and optimal performance, it is recommended to install the dedicated driver software. The user manual included in the packaging provides instructions and a link to download the programmer for the keyboard. This software allows you to modify key functions and lighting modes.
Video 1: RisoPhy Wireless Mechanical Gaming Keyboard - Demonstrates unboxing and driver installation process.
Operating Instructions
RGB Backlighting
The keyboard features 18 different RGB backlighting modes. You can adjust the brightness and frequency of the backlighting to suit your preference using the Function (Fn) key combinations:
- Fn + Backspace: Switch Backlight Mode
- Fn + ← / →: Adjust Backlight Speed (Speed - / Speed +)
- Fn + ↑ / ↓: Adjust Backlight Brightness (Brightness + / Brightness -)

Figure 3: Rich Custom Lighting Modes
Volume Knob Control
The integrated control knob provides effortless volume management:
- Press: Toggle volume on/off.
- Rotate: Adjust volume up (clockwise) or down (counter-clockwise).

Figure 4: Easy-Access Knob
Adjustable Stand
The keyboard features a two-stage adjustable stand on its underside, allowing you to set the typing angle for optimal comfort and ergonomics.
Maintenance
Cleaning
Regular cleaning helps maintain the keyboard's performance and appearance. Use a soft, dry cloth to wipe down the keycaps and chassis. For deeper cleaning, a can of compressed air can remove dust and debris from between the keys.
Keycap Removal
The keyboard comes with a tool designed for easy keycap removal. This allows for thorough cleaning underneath the keycaps or for swapping keycaps if desired. Gently use the tool to lift keycaps straight up to avoid damaging the switches.
Troubleshooting
- Connectivity Issues: If the keyboard fails to connect, ensure it is in the correct mode (2.4GHz, Bluetooth, or Wired). For Bluetooth, try re-pairing the device. For 2.4GHz, ensure the dongle is securely inserted. For wired, check the USB-C cable connection.
- Keys Not Responding: Ensure the keyboard is powered on and properly connected. If individual keys are unresponsive, try removing and re-inserting the keycap.
- Lighting Malfunctions: If RGB lighting is not functioning as expected, try cycling through the lighting modes using the Fn key combinations. Ensure the driver software is correctly installed for advanced lighting control.
- Software/Customization Problems: If you experience issues with key remapping or macro functions, ensure the latest driver software is installed and that the keyboard is connected in a compatible mode for software interaction.
Specifications
| Feature | Detail |
|---|---|
| Model Number | PC425A |
| Brand | RisoPhy |
| Connectivity Technology | 2.4GHz Wireless, BT5.0, USB-C |
| Keyboard Description | Gaming |
| Recommended Uses | Gaming |
| Special Feature | Portable, Backlit, Volume Knob, Gasket Mount, Sound Dampening |
| Number of Keys | 66 |
| Switch Type | Mechanical |
| Item Weight | 1.68 pounds |
| Package Dimensions | 14.61 x 5.98 x 2.48 inches |
| Country of Origin | China |
Warranty and Support
This product is subject to a 30-day return policy from the date of purchase. For any product-related inquiries, technical support, or warranty claims, please refer to the contact information provided in your product packaging or visit the official RisoPhy website.
Extended protection plans may be available for purchase separately. Please check with your retailer for details on 3-Year or 4-Year protection plans.