1. Introduction
The COMFAST BE6500 WiFi7 USB Adapter is a high-speed, tri-band wireless network card designed to provide advanced connectivity for your desktop or laptop computer. Utilizing the latest WiFi 7 (802.11be) technology, it offers significantly faster speeds, lower latency, and improved network efficiency compared to previous generations. This adapter supports 2.4GHz, 5GHz, and 6GHz frequency bands, delivering a combined wireless transmission rate of up to 6452Mbps. It features a plug-and-play design for Windows 10/11 (64-bit) systems, eliminating the need for manual driver installation.
Two main models are available: the CF-987BE (dongle style with built-in antennas) and the CF-985BE (desktop style with external high-gain antennas and an extension cable). Both models are equipped with USB 3.0 for efficient data transmission and WPA3 encryption for enhanced network security.

2. Setup Instructions
2.1 System Requirements
The COMFAST BE6500 WiFi7 USB Adapter is compatible with:
- Windows 10 (32-bit/64-bit)
- Windows 11 (64-bit)
For other operating systems, please consult COMFAST customer service or consider alternative network card models.

2.2 Hardware Connection
- Identify a USB 3.0 Port: Locate an available USB 3.0 port on your computer. USB 3.0 ports are typically blue or marked with a 'SS' (SuperSpeed) symbol. While compatible with USB 2.0, a USB 3.0 port is recommended for optimal performance.
- Connect the Adapter:
- For CF-987BE (Dongle Style): Directly plug the adapter into the chosen USB 3.0 port on your computer.
- For CF-985BE (Desktop Style): Connect the adapter to your computer using the provided 1.2-meter extension cable. This allows for flexible placement of the adapter to optimize signal reception.
- Automatic Driver Installation: The adapter features a free-drive design. Upon plugging it into a Windows 10/11 (64-bit) system, the necessary drivers will install automatically. No CD-ROM or manual download is required.


3. Operating Instructions
3.1 Connecting to a Wi-Fi Network
- Once the adapter is successfully installed, the Wi-Fi signal indicator light on the adapter will illuminate.
- On your Windows taskbar, click the network icon (usually a Wi-Fi symbol or globe).
- A list of available Wi-Fi networks will appear. Select your desired network.
- Enter the network security key (password) if prompted.
- Click 'Connect'. Your computer should now be connected to the Wi-Fi network.
3.2 Tri-Band Functionality
The BE6500 adapter supports three frequency bands: 2.4GHz, 5GHz, and 6GHz. Your router must also support these bands for you to utilize them. Modern routers often broadcast separate SSIDs (network names) for different bands (e.g., 'MyWiFi-2.4G', 'MyWiFi-5G', 'MyWiFi-6G'). For optimal performance, especially for gaming or streaming, connect to the 5GHz or 6GHz band if available.

3.3 Network Security (WPA3)
The adapter supports WPA3 encryption, the latest standard for enhanced wireless security. For the best protection, ensure your Wi-Fi router is also configured to use WPA3. The adapter is also backward compatible with WPA-WEP, WPA-PSK, and WPA2-PSK encryption protocols.

Video 1: COMFAST BE6500 WiFi7 USB Adapter Overview
4. Maintenance
4.1 Heat Dissipation
The adapter is designed with a heat sink for efficient heat dissipation, ensuring stable performance during extended use. Avoid blocking the ventilation areas on the adapter to maintain optimal cooling.
4.2 General Care
- Keep the adapter in a dry environment and away from direct sunlight or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Clean the adapter periodically with a soft, dry cloth. Do not use liquid cleaners.
- Ensure the USB connection is secure to prevent intermittent connectivity.
5. Troubleshooting
5.1 No Wi-Fi Connection
- Check Adapter Connection: Ensure the adapter is firmly plugged into a USB 3.0 port.
- Verify Driver Installation: On Windows 10/11, drivers should install automatically. Check Device Manager to ensure the adapter is recognized and drivers are installed correctly.
- Router Status: Confirm your Wi-Fi router is powered on and broadcasting a signal.
- Network Selection: Make sure you are selecting the correct Wi-Fi network and entering the correct password.
5.2 Slow Wi-Fi Speed
- Router Bandwidth: Ensure your router supports WiFi 7 and the 6GHz or 5GHz bands for maximum speed. The actual rate depends on your router's bandwidth (e.g., 160MHz) and usage environment.
- Signal Strength: For CF-985BE, adjust the position of the external antennas or the adapter using the extension cable to improve signal strength. For CF-987BE, ensure it's not obstructed.
- Interference: Move the adapter away from other electronic devices that might cause interference (e.g., microwaves, cordless phones).
- USB Port: Confirm the adapter is connected to a USB 3.0 port, not a slower USB 2.0 port.
- Router Settings: Check your router's settings for channel optimization or firmware updates.
5.3 Adapter Not Recognized
- Try Different USB Port: Plug the adapter into a different USB port on your computer.
- Restart Computer: A simple restart can often resolve recognition issues.
- Check Device Manager: In Windows Device Manager, look for any unknown devices or devices with error symbols. If found, try updating or reinstalling drivers.
6. Specifications
| Feature | CF-985BE | CF-987BE |
|---|---|---|
| Model | CF-985BE | CF-987BE |
| Wireless Frequency | 2.412GHz–2.484GHz, 5.180–5.825GHz, 5.925-7.125GHz (Tri-Band) | |
| Wireless Standard | IEEE802.11a/b/g/n/ac/ax/be (WiFi 7) | |
| Transmission Rate | 2.4GHz: 688Mbps 5.8GHz: 2882Mbps 6GHz (Band 3): 2882Mbps Total: 6452Mbps | |
| Antenna | External 4*5dBi | Built-in 2*4dBi |
| Port | USB 3.0 | Type-C to USB3.0 |
| Extension Cable | 1.2M Cable | 1.2M Cable |
| Indicator | Wi-Fi signal lights | |
| Encryption | WPA-WEP/WPA-PSK/WPA2-PSK/WPA3 | |
| Support OS | Windows 10 (32bit/64bit) / 11 (64bit) | |
| Product Size (L*W*H) | 101mm * 98mm * 175mm | 92mm * 83mm * 111mm |
| Working Temperature | 0℃ ~ 40℃ | |
| Storage Temperature | -40℃ ~ 70℃ | |
| Operating Humidity | 10% ~ 90%RH (Non-condensing) | |
| Storage Humidity | 5% ~ 90%RH (Non-condensing) | |

7. User Tips
- Optimal Placement: For the CF-985BE model, utilize the 1.2-meter extension cable to position the adapter in an open area, away from obstructions and other electronics, to maximize signal strength and minimize interference.
- Router Compatibility: To fully experience WiFi 7 speeds, ensure your wireless router also supports WiFi 7 (802.11be) and the 6GHz band.
- USB 3.0 Priority: Always connect the adapter to a USB 3.0 port for the best performance. While compatible with USB 2.0, speeds will be significantly lower.
- Security Best Practices: Enable WPA3 encryption on your router for the highest level of network security.
8. Warranty and Support
8.1 Product Warranty
This COMFAST product comes with a 1-year warranty from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or external factors.
8.2 Technical Support
For technical assistance, troubleshooting, or warranty inquiries, please contact your retailer or the official COMFAST support channels. Refer to the product packaging or the official COMFAST website for the most up-to-date contact information.





