1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your PCI-E 4X to Dual 10Gbps USB 3.1 Type-C Expansion Card. This advanced expansion card, featuring the ASM3142 chipset, is designed to enhance your desktop PC with high-speed USB 3.1 Gen2 connectivity and versatile 4K video output capabilities via DisplayPort 1.4.
It offers optimal 10Gbps data utilization and efficient 5V power delivery, making it an ideal solution for modern peripherals and high-bandwidth applications.
2. Package Contents
Please verify that all items are present and in good condition upon opening the package:
- 1 x PCI-E 4X to Dual 10Gbps USB 3.1 Type-C Expansion Card
- 1 x Low-profile Baffle (for small form factor cases)
- 1 x DP Cable (approximately 40cm)

3. Specifications
| Feature | Detail |
|---|---|
| Model Number | PCI-E 4X to Dual 10Gbps USB 3.1 Type-C |
| Brand Name | ATUOTIN |
| Chipset | ASM3142 |
| Interface Type | PCI Express (PCIe x4, x8, x16 compatible slots) |
| USB Standard | USB 3.1 Gen2 (USB 3.2 10G) |
| Data Transfer Speed | 10Gbps |
| Power Delivery | 5V/3A charging support |
| Video Output | 4K 60Hz via Type-C (requires Mini DisplayPort 4K input) |
| Input Interface 2 (Video) | Mini DisplayPort 4K |
| Output Interface 1 | Type-C female port (10Gbps data) |
| Output Interface 2 | Type-C female port (10Gbps data + 4K 60Hz video) |
| System Support | Windows 10, 11, Mac OS, Linux (driver-free); Windows 7 (driver required) |
| Product Dimensions (PCB) | 80mm x 57mm (excluding baffle) |
| Package Dimensions | 15cm (L) x 10cm (W) x 3cm (H) |
| Package Weight | 0.129 kg |

4. Setup Instructions
Follow these steps to install your PCI-E expansion card:
- Prepare your computer: Power off your computer and unplug all cables. Open the computer case to access the motherboard.
- Locate a compatible PCIe slot: Find an available PCIe x4, x8, or x16 slot on your motherboard.
- Install the expansion card: Carefully align the expansion card with the chosen PCIe slot and press it firmly until it is securely seated. Secure the card with a screw to the chassis.
- Connect the Mini DisplayPort cable: Connect one end of the provided Mini DisplayPort cable to the Mini DisplayPort 4K input on the expansion card. Connect the other end to a Mini DisplayPort output on your graphics card. This connection is essential for enabling 4K video output through the Type-C port.
- Close the computer case: Once the card is installed and the DP cable is connected, close your computer case and reconnect all cables.
- Power on and install drivers (if necessary): Power on your computer. For Windows 10, 11, Mac OS, and Linux systems, the card should be plug-and-play with no additional driver installation required. For Windows 7 systems, you will need to install the appropriate drivers. Refer to the manufacturer's website for driver downloads if needed.


5. Operating Instructions
Once installed, your expansion card provides enhanced connectivity:
- High-Speed Data Transfer: Use the Type-C output ports to connect USB 3.1 Gen2 compatible devices for data transfer speeds up to 10Gbps. The card is backward compatible with USB 3.0 SuperSpeed (10/5Gbps), USB 2.0 High Speed (480Mbps), and USB 1.1 Low Speed (1.5Mbps) devices.
- Power Delivery: The Type-C ports support 5V/3A charging, allowing you to power or charge compatible devices.
- 4K Video Output: The Type-C port labeled 'USB & DP OUT' can output 4K 60Hz video, provided the Mini DisplayPort input from your graphics card is connected. This allows you to connect USB-C video devices or monitors that support DisplayPort Alternate Mode.
- Reversible Plug-in Design: The Type-C interface features a reversible design for convenient connection.

6. Maintenance
To ensure the longevity and optimal performance of your expansion card:
- Keep your computer's interior clean and free of dust to prevent overheating.
- Ensure proper airflow within your PC case.
- Avoid physical impact or excessive force on the card or its ports.
- Do not attempt to disassemble or modify the card, as this will void any potential warranty.
7. Troubleshooting
- No detection after installation:
- Ensure the card is fully seated in the PCIe slot.
- Try installing the card in a different PCIe slot if available.
- Verify that your system's BIOS/UEFI settings are configured to recognize new PCIe devices.
- USB devices not working:
- Check if the necessary drivers are installed, especially for Windows 7.
- Test with different USB devices to rule out device-specific issues.
- Ensure the device is compatible with the USB 3.1 Gen2 standard or its backward-compatible modes.
- No 4K video output:
- Confirm that the Mini DisplayPort cable is securely connected from your graphics card to the expansion card's DP input.
- Ensure your graphics card supports 4K output and is configured correctly.
- Verify that your monitor and USB-C video cable support 4K 60Hz and DisplayPort Alternate Mode.
8. User Tips
- For optimal performance, ensure your operating system is up-to-date.
- While the card is generally driver-free for modern OS, always check for the latest drivers from your motherboard or graphics card manufacturer for best compatibility.
- When connecting USB-C video devices, use high-quality cables that explicitly support DisplayPort Alternate Mode for reliable 4K output.
- Note that due to variations in monitor settings and lighting conditions, the actual color of the item may vary slightly from product images.
- Allow for a 1-2 cm difference in measurements due to manual measuring when considering product dimensions.
9. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact the retailer where you purchased this product. Keep your proof of purchase for any warranty claims.
For additional resources, you may refer to the official product documentation available as a PDF: User Manual (PDF)