1. Introduction
The COMFAST WiFi7 USB Adapter BE6500 (Model CF-987BE) is a state-of-the-art wireless network card designed to provide high-speed, stable, and secure internet connectivity for your desktop computer. Utilizing the latest WiFi 7 (802.11be) technology, this adapter supports tri-band frequencies (2.4GHz, 5.8GHz, and 6GHz) to deliver an exceptional wireless experience. Its plug-and-play design with a built-in driver ensures easy installation, making it an ideal solution for users seeking enhanced network performance.
2. Key Features
- WiFi 7 Technology: Supports the latest IEEE802.11a/b/g/n/ac/ax/be wireless standards for cutting-edge performance.
- Tri-Band Connectivity: Operates on 2.4GHz, 5.8GHz, and 6GHz frequency bands for versatile and optimized connections.
- Ultra-High Speed: Achieves a combined wireless transmission rate of up to 6452Mbps (2.4G: 688Mbps + 5.8G: 2882Mbps + 6G: 2882Mbps).
- Driver-Free Installation: Features a built-in driver for automatic installation upon plugging into a compatible USB port, offering true plug-and-play convenience.
- High Gain Antennas: Equipped with two built-in 4dBi omnidirectional antennas for stronger signal transmission and reception, improving wall penetration and network stability.
- USB 3.0 Interface: Ensures efficient and high-speed data transmission, backward compatible with USB 2.0.
- 1.2M Extension Cable: Provides flexibility in placement to optimize signal reception and convenience.
- Efficient Heat Dissipation: Designed with dual-side heat sinks to maintain optimal operating temperature and ensure stable performance.
- Lower Latency: Supports 16x16 MIMO for increased data throughput and reduced lag, enhancing real-time applications.
- Energy Saving: Incorporates power-saving features like Target Wake Time (TWT) and 4096QAM for improved power efficiency.
- Enhanced Security: Supports WPA3 encryption, along with WPA-WEP, WPA-PSK, and WPA2-PSK, for robust network security.
- System Compatibility: Fully compatible with Windows 10 (32-bit and 64-bit) and Windows 11 (64-bit) operating systems.


3. Package Contents
Please check the package contents upon unboxing. If any items are missing or damaged, contact your retailer.
- 1x COMFAST WiFi7 USB Adapter (CF-987BE)
- 1x 1.2M USB Extension Cable
- 1x Quick Installation Guide
- 1x Warranty Card
4. Specifications
| Feature | Description |
|---|---|
| Model | CF-987BE |
| Wireless Frequency | 2.412GHz–2.484GHz, 5.180–5.825GHz, 5.925–7.125GHz |
| Wireless Standard | IEEE802.11a/b/g/n/ac/ax/be |
| Transmission Rate | 2.4GHz: 688Mbps; 5.8GHz: 2882Mbps; 6GHz: 2882Mbps (Total 6452Mbps) |
| Port | Type-C to USB3.0 |
| Antenna | 2 * 4dBi Built-in Omnidirectional Antennas |
| Indicator | Wi-Fi signal lights |
| Encryption | WPA-WEP/WPA-PSK/WPA2-PSK/WPA3 |
| Supported OS | Windows 10 (32bit/64bit), Windows 11 (64bit) |
| Product Size (L*W*H) | 92mm * 83mm * 111mm |
| Working Temperature | 0°C ~ 40°C |
| Storage Temperature | -40°C ~ 70°C |
| Operating Humidity | 10% ~ 90%RH (non-condensing) |
| Storage Humidity | 5% ~ 90%RH (non-condensing) |

5. Setup and Installation
The COMFAST WiFi7 USB Adapter is designed for easy, driver-free installation.
- Connect the Adapter: Plug the CF-987BE adapter directly into an available USB 3.0 port on your desktop computer. For optimal performance, use a USB 3.0 port (typically blue inside) to leverage the adapter's high-speed capabilities. If using the provided 1.2M extension cable, connect the adapter to one end of the cable and the other end to your computer's USB 3.0 port.
- Automatic Driver Installation: The adapter features a built-in driver. Upon connecting it to your computer, the operating system (Windows 10/11) should automatically detect the device and install the necessary drivers. This process typically takes a few moments.
- Placement Optimization (with Extension Cable): If using the extension cable, position the adapter in an open area, away from obstructions and other electronic devices that might cause interference. This helps maximize signal strength and stability.
- Verify Installation: Once the driver installation is complete, a Wi-Fi icon should appear in your system tray. Click on it to view available wireless networks.



6. Operating Instructions
- Connect to a Wi-Fi Network: After successful installation, click the Wi-Fi icon in your system tray. Select your desired Wi-Fi network from the list and enter the password if prompted.
- Tri-Band Selection: The adapter will automatically connect to the optimal band (2.4GHz, 5.8GHz, or 6GHz) supported by your router and device. For maximum speed and lower interference, ensure your router supports 5GHz or 6GHz bands and that your computer is within range.
- Signal Strength: The built-in high gain antennas provide a strong and stable signal. The indicator light on the adapter will show its operational status.
- Security: The adapter supports WPA3 encryption for enhanced network security. Always connect to secure networks with strong passwords.






7. Maintenance
- Keep Clean: Regularly clean the adapter and its surroundings to prevent dust buildup, which can affect performance and heat dissipation. Use a soft, dry cloth.
- Proper Ventilation: Ensure the adapter is placed in an area with adequate airflow to allow the dual-side heat sinks to function effectively. Avoid covering the adapter.
- Avoid Physical Damage: Handle the adapter with care. Do not drop it or expose it to excessive force.
- Environmental Conditions: Operate and store the adapter within the specified temperature and humidity ranges to prevent damage.
8. Troubleshooting
- No Wi-Fi Connection:
- Ensure the adapter is securely plugged into a USB 3.0 port.
- Restart your computer.
- Check if your router is functioning correctly and broadcasting a Wi-Fi signal.
- Verify that Wi-Fi is enabled in your computer's network settings.
- Slow Connection Speed:
- Ensure you are connected to the 5GHz or 6GHz band if available, as these offer higher speeds.
- Move the adapter closer to your Wi-Fi router, especially if using the extension cable.
- Check for interference from other electronic devices (e.g., microwaves, cordless phones).
- Ensure your router supports WiFi 7 (802.11be) and has sufficient bandwidth (e.g., 160MHz) to achieve maximum advertised speeds.
- Update your router's firmware.
- Driver Not Installing Automatically:
- Try plugging the adapter into a different USB port.
- Ensure your Windows 10/11 system is up to date.
- If issues persist, contact customer service for driver download links.
- Adapter Not Recognized:
- Check Device Manager in Windows to see if the adapter is listed. If there's an error, try uninstalling and reinstalling the device.
- Ensure your operating system is Windows 10 (32/64-bit) or Windows 11 (64-bit). For other systems, consult customer service.
9. User Tips
- Optimal Placement: Use the included 1.2M extension cable to position the adapter in a clear line of sight to your Wi-Fi router. This can significantly improve signal strength and reduce interference.
- Router Compatibility: To fully utilize the 6452Mbps speed and tri-band capabilities, ensure your Wi-Fi router is also WiFi 7 compatible and supports 160MHz or 320MHz bandwidth on the 5GHz/6GHz bands.
- System Requirements: This adapter is specifically designed for Windows 10 (32/64-bit) and Windows 11 (64-bit). For other operating systems, performance and compatibility are not guaranteed.
- Regional Use: The adapter uses standard Wi-Fi frequencies and protocols, making it generally usable in Western Europe and other regions without specific issues, provided local regulations for 6GHz band usage are met.
10. Warranty and Support
This COMFAST WiFi7 USB Adapter (CF-987BE) comes with a 1-year warranty from the date of purchase, covering manufacturing defects. For technical support, troubleshooting assistance, or warranty claims, please contact the seller or COMFAST customer service. Keep your purchase receipt as proof of purchase.





