: Follow the prompts to install. It will automatically detect the PCIe card and map the COM or LPT ports. Device Manager ) and look under Ports (COM & LPT) . You should see "WCH PCI Express Serial Port" or similar. Nanjing Qinheng Microelectronics Co., Ltd. Troubleshooting Tips Manual Update
If you see "A required entry is missing from the driver installation file," it often means Windows is trying to use an incompatible legacy driver. www.wch.cn Ensure you are using the PCIE-specific CH38X driver, not the older CH35X (PCI) version. Port Not Opening in Software Check which COM Port number was assigned (e.g., COM3). In Device Manager, go to Ports (COM & LPT) → Right-click your port → Properties Port Settings to adjust the Baud Rate (up to 8Mbps supported). Nanjing Qinheng Microelectronics Co., Ltd. Driver Signature Verification Windows 10 may block unsigned drivers. The official WCH driver is WHQL Certified If you have a generic version, you may need to Disable Driver Signature Enforcement temporarily to install. Nanjing Qinheng Microelectronics Co., Ltd. 📚 Further Exploration Download the Official CH382 Datasheet to view technical specifications and pinout diagrams. WCH Community Forum ch382ssp-1107 driver windows 10
Direct Windows to the folder where you extracted the CH38X files. : Follow the prompts to install
If your system does not automatically recognize the card, follow these steps to install the driver manually: Nanjing Qinheng Microelectronics Co., Ltd. You should see "WCH PCI Express Serial Port" or similar
: A bi-directional port (IEEE1284) often used for older printers or industrial equipment. The Connection Crisis