1. Introduction
The UGREEN AX1800 WiFi 6 USB 3.0 Dual-Band Wireless Adapter (Model CM495) is designed to provide your desktop or laptop with high-speed Wi-Fi 6 connectivity. Featuring dual 5dBi antennas and USB 3.0 interface, it supports both 2.4GHz and 5GHz bands, delivering fast and stable wireless performance for various applications, from online gaming to 4K streaming. This manual will guide you through the setup, operation, and maintenance of your new wireless adapter.

Figure 1: UGREEN AX1800 WiFi 6 USB 3.0 Dual-Band Wireless Adapter
2. Key Features
- WiFi 6 (802.11ax) Standard: Experience next-generation wireless speeds and efficiency.
- AX1800 Dual-Band: Up to 1201Mbps on 5GHz and 574Mbps on 2.4GHz for a combined 1800Mbps.
- USB 3.0 Interface: Ensures fast and stable data transmission, backward compatible with USB 2.0.
- Dual 5dBi Antennas: Enhance signal reception and transmission range for stable connections.
- WPA3 Encryption: Provides advanced security for your wireless network.
- Beamforming Technology: Focuses Wi-Fi signals towards connected devices for improved performance.
- MIMO & OFDMA Technology: Allows multiple devices to connect simultaneously with reduced latency.
- Built-in Driver: Easy installation for Windows 10 and Windows 11.
- REALTEK Chip: Ensures reliable and high-performance connectivity.

Figure 2: Overview of Adapter's Key Features

Figure 3: WiFi Standard Comparison

Figure 4: Speed Comparison of Different WiFi Standards
3. Setup Instructions
Follow these steps to install and set up your UGREEN AX1800 WiFi Adapter:
- Insert the Adapter: Plug the UGREEN AX1800 WiFi Adapter into an available USB 3.0 port on your PC or laptop. For optimal performance, use a USB 3.0 port (usually blue inside).
- Driver Installation: The adapter features a built-in driver for Windows 10/11. Once plugged in, navigate to 'This PC' or 'My Computer', locate the virtual CD-ROM drive that appears, and double-click the 'Set-up.exe' file to begin the driver installation. Follow the on-screen prompts to complete the installation.
- Connect to Wi-Fi: After the driver installation is complete, open your computer's Wi-Fi settings. Search for available Wi-Fi networks and select your desired network. Enter the password if prompted and click 'Connect'.

Figure 5: Easy Installation Steps
Note: If the driver does not install automatically or you encounter issues, you may need to download the latest driver from the official UGREEN website.
4. Operating Modes
The UGREEN AX1800 WiFi Adapter supports two primary operating modes:
4.1. Receive Wi-Fi Mode (Station Mode)
In this mode, the adapter allows your computer to connect to an existing Wi-Fi network, functioning as a client device. This is the standard mode for accessing the internet wirelessly.

Figure 6: Receive Wi-Fi Mode
4.2. Launch Wi-Fi Mode (Soft AP Mode)
This mode allows the adapter to create a temporary Wi-Fi hotspot, turning your computer into a wireless access point. Other devices (like smartphones or tablets) can then connect to your computer's internet connection via this hotspot.

Figure 7: Launch Wi-Fi Mode

Figure 8: OFDMA Technology for Multiple Devices
5. Specifications
| Feature | Description |
|---|---|
| Brand Name | UGREEN |
| Model Code | CM495 |
| Model Name | UGREEN AX1800 WiFi Adapter External Antenna |
| Chip | REALTEK |
| Interface Type | USB 3.0 (Backward compatible with USB 2.0/1.1) |
| Antenna | 2 x Internal high-gain antenna |
| Operating Frequencies | 5GHz & 2.4GHz |
| Transfer Rate | 1201Mbps Max (5GHz); 574Mbps Max (2.4GHz) |
| Wireless Standards | IEEE 802.11b/g/n, IEEE 802.11a/ac, IEEE 802.11ax |
| Wireless Communication Standard | 802.11.ax |
| Encryption | WPA3/WPA2/WPA, WPA-PSK/WPA2-PSK, 64/128WEP |
| Operating Mode | Receive Mode (Station Mode) & Launch Mode (Soft AP) |
| Compatible Systems | Windows 10/11 |
| Heat Dissipation | Support |
| Transmit Power | 20dBm |
| Working Channel | 1-13/36-48/149-163 |
| Certification | FCC, CE |
| Application | Desktop, Laptop, PC, Notebook |

Figure 9: Product Specifications

Figure 10: Product Certifications
6. Maintenance
- Keep the adapter in a dry environment and avoid exposure to extreme temperatures.
- Do not attempt to disassemble or repair the adapter yourself. This may void the warranty.
- Clean the adapter with a soft, dry cloth. Avoid using liquid cleaners.
- Ensure the USB port on your computer is clean and free of debris for a secure connection.
7. Troubleshooting
7.1. No Wi-Fi Connection After Installation
- Check USB Port: Ensure the adapter is securely plugged into a functioning USB port. Try a different USB port.
- Driver Status: Verify that the driver is correctly installed in Device Manager (Windows). If there's a yellow exclamation mark, reinstall the driver.
- Network Settings: Make sure Wi-Fi is enabled in your computer's network settings.
- Router Status: Confirm your Wi-Fi router is powered on and broadcasting a signal.
7.2. Slow Connection Speed
- USB Port: Ensure the adapter is connected to a USB 3.0 port for maximum speed. Connecting to a USB 2.0 port will limit performance.
- Signal Strength: Check the Wi-Fi signal strength. Weak signals can lead to slower speeds. Try moving closer to your router or repositioning the adapter.
- Interference: Other electronic devices (microwaves, cordless phones) can cause interference. Try to minimize these or move the adapter away from them.
- Router Settings: Ensure your router is configured for Wi-Fi 6 (802.11ax) and dual-band operation for optimal performance.
7.3. Adapter Not Detected
- Restart Computer: A simple restart can often resolve detection issues.
- Try Another Port/Computer: Test the adapter in a different USB port or on another computer to rule out a faulty port or adapter.
- Driver Reinstallation: Uninstall and reinstall the driver.
7.4. Limited Range
The range of a wireless adapter depends on various factors including obstacles, interference, and the power of your router. The UGREEN AX1800 features dual high-gain antennas to maximize range and stability.

Figure 11: Long Transmission Distance and Stable Signal
8. User Tips
- Optimal USB Port: Always use a USB 3.0 port for the best performance, as it offers significantly faster data transfer rates compared to USB 2.0.
- Driver Updates: Periodically check the UGREEN official website for updated drivers to ensure compatibility and optimal performance with the latest operating system versions.
- Public Wi-Fi Access: This adapter can be used to access public Wi-Fi networks, just like any other Wi-Fi device. Ensure you follow security best practices when connecting to public networks.
- Antenna Positioning: While the antennas are internal, ensure the adapter is not obstructed by other objects to maintain clear signal reception.

Figure 12: USB 3.0 vs USB 2.0 Speed
9. Warranty and Support
UGREEN products are designed and manufactured to the highest quality standards. For warranty information, technical support, or customer service, please refer to the official UGREEN website or contact their customer support directly. Please retain your proof of purchase for warranty claims.

























