The device identifier CH382SSP-1107 typically points to a serial or parallel port expansion card based on the popular but aging WCH (Nanjing Qinheng Microelectronics) CH382 chipset. These cards are commonly used in industrial, embedded, or legacy computing environments to add RS-232, RS-485, or parallel (LPT) ports to a modern PC. While the hardware itself is physically compatible with a standard PCI Express or PCI slot, the primary obstacle for users is software: finding a stable and digitally signed driver for Windows 10.
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
Do NOT use generic USB-to-serial drivers (like PL2303 or FTDI). Use only WCH CH382 drivers. The Challenge of Legacy Hardware: Sourcing the CH382SSP-1107
Alternatively, examine the physical card: Third-party “driver updater” tools
Virtual COM Ports: Upon installation, the driver typically creates "Virtual COM Ports" in the Windows Device Manager, allowing legacy software to address the new hardware as if it were a native port. 3. Installation and Troubleshooting
series (including CH382 and CH384) that is fully compatible with Windows 10 (both 32-bit and 64-bit). www.wch-ic.com Official Source : Download the latest driver from the WCH official website (CH38XDRV.EXE) Alternative Package : For some OEM implementations, a version is available on the WCH Chinese site (CH38XDRV.ZIP) www.wch-ic.com 2. Installation Procedure Direct Setup : Run the downloaded CH38XDRV.EXE
Supported OS: Full compatibility with Windows 10 (32-bit and 64-bit), as well as Windows 11, 8.1, 7, and various Windows Server versions.