1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your SYONCON WiFi 6E AXE5400 PCIe WiFi Card. This adapter features an Intel AX210 chipset, offering Tri-Band (2.4G/5G/6GHz) wireless connectivity up to 5374Mbps and integrated Bluetooth 5.3. Please read this manual carefully before installation to ensure proper functionality and safety.

Image 1.1: SYONCON WiFi 6E AXE5400 PCIe WiFi Card with antennas.
2. Package Contents
Verify that all items are present in your package:
- SYONCON WiFi 6E AXE5400 PCIe WiFi Card
- Two High-Gain 6dBi Antennas
- Bluetooth USB Cable
- Low-Profile Bracket
- Mounting Screws
- Screwdriver
- User Manual (this document)

Image 2.1: Contents included in the product package.
3. Setup and Installation
Follow these steps to install the WiFi 6E PCIe card into your desktop computer:
- Power Off and Unplug: Before beginning, ensure your computer is completely powered off and disconnected from the power outlet.
- Open PC Case: Carefully remove the side panel of your computer case to access the motherboard.
- Connect Bluetooth USB Cable: Connect the provided Bluetooth USB cable to the dedicated port on the WiFi card.
- Locate PCIe Slot and F-USB Connector: Identify an available PCI-E x1 slot on your motherboard. Also, locate a 9-pin F-USB connector on your motherboard. This is crucial for Bluetooth functionality.
- Install WiFi Card: Gently insert the WiFi card into the chosen PCI-E x1 slot until it is firmly seated.
- Connect Bluetooth to Motherboard: Connect the other end of the Bluetooth USB cable to the 9-pin F-USB connector on your motherboard.
- Secure the Card: Use the provided screw to secure the WiFi card's bracket to your PC case. If needed, replace the standard bracket with the low-profile bracket for smaller cases.
- Install Antennas: Screw the two high-gain 6dBi antennas onto the connectors at the back of the WiFi card. Adjust their position for optimal signal reception. The antennas can be folded 90 degrees and rotated 360 degrees.
- Close PC Case and Power On: Replace the PC case side panel, reconnect the power cable, and power on your computer.

Image 3.1: Illustration of compatible PCIe slots and the F-USB connector on a motherboard.
Video Guide: Installation Process
Video 3.1: A step-by-step guide demonstrating the physical installation of the SYONCON WiFi 6E AXE5400 PCIe WiFi Card and its antennas into a desktop computer.
4. Operating Instructions
4.1 Driver Installation
After physical installation, you may need to install drivers for full functionality. For the Intel AX210 chipset, drivers can typically be found on the Intel website. Search for "AX210 drivers" to download the latest versions for your operating system.
4.2 WiFi Connectivity (WiFi 6E Tri-Band)
The card supports WiFi 6E (802.11ax) across three bands: 2.4GHz, 5GHz, and 6GHz, offering speeds up to 5374Mbps (2400Mbps on 6GHz, 2400Mbps on 5GHz, 574Mbps on 2.4GHz).
- 2.4GHz: Provides wider coverage and better penetration through walls, suitable for general browsing and longer distances.
- 5GHz: Offers higher speeds and lower latency, ideal for gaming and streaming in closer proximity to the router.
- 6GHz: The newest band, providing the highest speeds and lowest latency in uncongested environments. Note: To utilize 6GHz Wi-Fi, your operating system must be Windows 11 or a Windows 10 Dev version, and your router must support 802.11ax (WiFi 6E) with 160MHz channel width.

Image 4.1: Overview of WiFi 6E capabilities including tri-band speeds and security.

Image 4.2: Chart illustrating channel availability across 2.4GHz, 5GHz, and 6GHz bands for WiFi 6E.
4.3 Bluetooth 5.3 Functionality
The integrated Bluetooth 5.3 offers improved range (4x over BT 4.2) and faster transmission speeds (2x over BT 4.2), with reduced power consumption. This allows for seamless connection with various Bluetooth devices such as headphones, keyboards, mice, and game controllers.
Important: Bluetooth functionality requires the Bluetooth USB cable to be connected to a 9-pin F-USB connector on your motherboard during installation. Ensure your operating system drivers are up to date for optimal Bluetooth 5.3 performance.

Image 4.3: Devices compatible with Bluetooth 5.3 connectivity.
4.4 Supported Operating Systems
This WiFi card is compatible with:
- Windows 10 (64-bit)
- Windows 11 (64-bit)
- Linux systems (Kernel 5.1+)
Older Windows versions (7/8/8.1) are not supported.

Image 4.4: Visual representation of supported operating systems.
5. Maintenance
To ensure optimal performance and longevity of your WiFi card:
- Keep Antennas Clear: Ensure the external antennas are not obstructed and are positioned for the best signal.
- Maintain Airflow: Ensure good airflow within your PC case to prevent overheating of components, including the WiFi card.
- Driver Updates: Periodically check the Intel website for updated drivers to benefit from performance improvements and bug fixes.
- Cleanliness: Keep your PC interior clean from dust, which can accumulate on components and affect performance.
6. Troubleshooting
If you encounter issues with your WiFi card, refer to the following common solutions:
- No WiFi or Bluetooth Connection:
- Verify the card is correctly seated in the PCIe slot.
- Ensure the Bluetooth USB cable is securely connected to both the card and the motherboard's F-USB header.
- Check Device Manager (Windows) or network settings (Linux) to see if the device is recognized.
- Install or update the latest drivers from the Intel website for the AX210 chipset.
- 6GHz WiFi Not Available:
- Confirm your operating system is Windows 11 or a Windows 10 Dev version.
- Ensure your wireless router supports WiFi 6E (802.11ax) and has 6GHz band enabled with 160MHz channel width.
- Update your WiFi card drivers.
- Slow Speeds or Intermittent Connection:
- Adjust the position of the external antennas for better signal reception.
- Ensure your router is functioning correctly and is not experiencing interference.
- Update your WiFi card drivers.
- Check for other devices causing interference on the same frequency band.
- Bluetooth Devices Not Pairing:
- Ensure the Bluetooth USB cable is properly connected.
- Update Bluetooth drivers from the Intel website.
- Ensure the Bluetooth device is in pairing mode and within range.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | PCIE-AX210-HEI |
| Chipset | Intel AX210 |
| Wireless Standard | WiFi 6E (802.11ax) |
| Frequency Bands | 2.4GHz, 5GHz, 6GHz (Tri-Band) |
| Max Data Transfer Rate | 5374 Mbps (2400Mbps-6GHz; 2400Mbps-5GHz; 574Mbps-2.4GHz) |
| Bluetooth Version | Bluetooth 5.3 |
| Hardware Interface | PCIe x1 (compatible with PCIe x1, x4, x8, x16 slots) |
| Antennas | Two 6dBi Multi-directional Antennas |
| Operating Systems | Windows 10/11 (64-bit), Linux (Kernel 5.1+) |
| Package Dimensions | 7.24 x 4.72 x 1.14 inches |
| Item Weight | 6.7 ounces |
8. Warranty and Support
SYONCON products are designed for reliability and performance. For warranty information, please refer to the product packaging or the official SYONCON website. If you require technical assistance or have questions regarding your product, please contact SYONCON customer support through their official channels. Be prepared to provide your product model number (PCIE-AX210-HEI) and purchase details.