1. Introduction
The Rapoo E9050L is an ultra-thin, multi-mode wireless keyboard designed for versatility and efficiency. It supports three connection modes: Bluetooth 4.0, Bluetooth 5.0, and 2.4G wireless, allowing seamless switching between up to four devices. Featuring a compact 78-key layout with a scissor foot structure for comfortable and quiet typing, a durable aluminum alloy frame, and a long-lasting built-in lithium battery, the E9050L is ideal for various computing environments, including desktop, laptop, and tablet use. The AI version includes a dedicated button for quick access to DeepSeek AI model functions.
Figure 1: Rapoo E9050L Keyboard Overview
2. Package Contents
- Rapoo E9050L Wireless Keyboard
- USB-C Charging Cable
- 2.4G USB Receiver (for 2.4G wireless mode)
- User Manual (this document)
3. Setup and Connection
3.1. Powering On/Off and Mode Switching
The keyboard features a mode switch key on its side to select the desired connection mode or to turn the keyboard off.
Figure 2: Mode Switch Key
- Left Position: 2.4G Wireless Mode
- Middle Position: Off Mode
- Right Position: Bluetooth Mode
3.2. 2.4G Wireless Mode Connection
- Insert the RAPOO 2.4G USB receiver into an available USB port on your computer.
- Switch the keyboard's mode switch key to the 2.4G mode (left position). The keyboard will automatically connect to the receiver.
Figure 3: 2.4G Wireless Connection Steps
3.3. Bluetooth Mode Connection
The keyboard supports Bluetooth 4.0 and 5.0 and can store up to three Bluetooth device pairings (channels Fn+1, Fn+2, Fn+3).
- Switch the keyboard's mode switch key to the Bluetooth mode (right position).
- Select a Channel: Short press the key combination Fn + 1, Fn + 2, or Fn + 3 to select an available Bluetooth channel for pairing.
- Enter Pairing Mode: Long press the selected key combination (Fn + 1/2/3) for 3-5 seconds. The green indicator light on the keyboard will flash continuously, indicating it is in pairing mode.
- Pair with Device: On your device (computer, tablet, phone), go to Bluetooth settings and search for new devices. Select "Rapoo E9050L" from the list.
- Pairing Success: Once successfully paired, the green indicator light on the keyboard will turn off.
- Pairing Timeout: If pairing is not successful within 2 minutes, the green indicator light will turn off, and you will need to re-enter pairing mode.
Figure 4: Bluetooth Connection Steps
3.4. Multi-Device Switching
After pairing multiple devices (up to 4: one 2.4G and three Bluetooth), you can quickly switch between them:
- To switch to a 2.4G connected device, move the mode switch key to the 2.4G position.
- To switch to a Bluetooth connected device, move the mode switch key to the Bluetooth position, then short press Fn + 1, Fn + 2, or Fn + 3 corresponding to the desired paired device.
Figure 5: Multi-Device Connectivity
4. Operation
4.1. Multimedia Shortcut Keys
The E9050L keyboard is compatible with both Windows and macOS systems and features 12 multimedia shortcut keys accessible via the Fn key.
Figure 6: Multimedia Functions
Windows System Multimedia Functions:
- Fn + F1: Back
- Fn + F2: Forward
- Fn + F3: Home Page
- Fn + F4: Mailbox
- Fn + F5: Player
- Fn + F6: Play/Pause
- Fn + F7: Stop
- Fn + F8: (Function not specified in diagram)
- Fn + F9: Next
- Fn + F10: Volume Down
- Fn + F11: Volume Up
- Fn + F12: Mute
macOS System Mode:
- Fn + Q: Enters macOS system mode
Windows System Mode:
- Fn + W: Enters Windows system mode
4.2. AI Button (AI Version Only)
For keyboards with the AI version, a dedicated AI button is available. After downloading the corresponding Rapoo driver, pressing this key will quickly invoke the DeepSeek AI model window, providing instant access to AI functionalities.
Figure 7: AI Button Location
4.3. Indicator Lights
The keyboard features indicator lights to show status such as low power and charging status.
Figure 8: Indicator Light Locations
- Green Indicator (Flashing): Bluetooth pairing mode.
- Green Indicator (Solid/Off): Bluetooth paired/not in pairing mode.
- Other Indicators: Low power, charging status, and case indicators provide visual feedback on the keyboard's operational state.
5. Charging and Battery
The Rapoo E9050L features a built-in 500mAh lithium battery, designed for high efficiency and energy saving.
- Charging Interface: USB-C
- Charging Time: Approximately 3 hours for a full charge.
- Battery Life:
- 2.4G Wireless Mode: Approximately 240 hours of continuous use.
- Bluetooth Mode: Approximately 260 hours of continuous use.
Figure 9: Battery Specifications
6. Specifications
| Feature | Detail |
|---|---|
| Model | E9050L |
| Product Size | 284mm × 119mm × 13mm |
| Product Weight | Approx. 292g (excluding receiver) |
| Body Thickness | 5.3mm (thinnest point) |
| Connection Modes | Bluetooth 4.0, Bluetooth 5.0, Wireless 2.4G |
| Number of Keys | 78 Keys |
| Operation Style | Membrane (Scissor foot structure) |
| Key Stroke | 1.5mm |
| Key Life | 3 million times |
| Battery Type | Built-in Lithium Battery |
| Battery Capacity | 500mAh |
| Charging Interface | USB-C |
| Endurance | Approx. 240-260 hours (depending on mode) |
| Compatibility | Windows, macOS, Desktop, Laptop, Tablet |
| Keycup Material | PBT plastic |
| Keycup Printing | Dye-sublimation |
Figure 10: Detailed Product Parameters
6.1. 2.4G USB Receiver Parameters
- Dimensions: 18mm × 14mm × 6mm
- Weight: 2g
Figure 11: Receiver Parameters
7. Maintenance
- Cleaning: Use a soft, dry cloth to wipe the keyboard surface. For deeper cleaning, a slightly damp cloth with mild soap can be used, ensuring no liquid enters the keys or internal components.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the keyboard frequently. Charge it when the low power indicator appears.
- Avoid Liquids: Do not expose the keyboard to liquids, as this can cause damage.
8. Troubleshooting
- Keyboard not connecting:
- Ensure the keyboard is powered on and in the correct mode (2.4G or Bluetooth).
- For 2.4G mode, ensure the USB receiver is properly inserted into your device.
- For Bluetooth mode, ensure your device's Bluetooth is enabled and the keyboard is in pairing mode (flashing green light). Try re-pairing if necessary.
- Check if the keyboard battery is charged.
- Keys not responding:
- Check battery level and charge if low.
- Ensure the keyboard is properly connected to your device.
- Restart your device and the keyboard.
- Intermittent connection:
- Move the keyboard closer to your device to reduce interference.
- Avoid using the keyboard near other strong wireless signals (e.g., Wi-Fi routers, other Bluetooth devices).
- Ensure the 2.4G receiver is not obstructed.
- AI button not working (AI version):
- Ensure you have downloaded and installed the latest Rapoo driver for the AI version of the keyboard.
- Verify that the DeepSeek AI model is properly configured on your system.
9. User Tips
- Optimize Battery Life: Turn off the keyboard using the mode switch when not in use for extended periods to conserve battery.
- Multi-Device Efficiency: Utilize the fast-switching feature to seamlessly transition between your computer, tablet, and smartphone without re-pairing.
- Driver Installation: For AI version keyboards, ensure you install the official Rapoo driver to enable the DeepSeek AI button functionality.
- System Compatibility: Remember to use Fn+Q for macOS mode and Fn+W for Windows mode to ensure all multimedia keys function correctly on your operating system.
10. Warranty and Support
Rapoo products are manufactured to the highest quality standards. For warranty information and technical support, please refer to the official Rapoo website or contact their customer service. Keep your purchase receipt as proof of purchase for any warranty claims.
