: The installation process stalls or Windows returns an error.
If prompted, select "Let me pick from a list" → "Show All Devices" → "Have Disk" and point to the file in the driver folder. StarTech.com 🔍 Troubleshooting Common Issues "Missing Entry" or INF Errors
A: No. CH341 is for USB-to-serial; CH382 is for PCIe-to-serial. They are not interchangeable.
Right-click the downloaded ZIP folder and select Extract All .
Converts PCIe bus to 2× UART (Serial) and 1× Parallel (LPT). Current Version: 1.5 (Released 2021-10-16). Nanjing Qinheng Microelectronics Co., Ltd. 📥 Download and Installation ch382ssp-1107 driver windows 10
If you encounter digital signature issues, ensure you have the latest WHQL-certified version from the official WCH site Hardware Not Recognized:
Installing drivers
If you encounter any issues after following these steps, check the physical connection of the PCIe card, verify you are using the correct driver for your system architecture (32-bit vs. 64-bit), and consult the manufacturer's support resources, as the chipset may also have Linux drivers available. If problems persist, posting in online tech forums with your specific hardware ID can often lead to a solution.
CH38XDRV.EXE (Nanjing Qinheng Microelectronics) — Supports 32/64-bit Windows 10 and 11. : The installation process stalls or Windows returns
Look under . You should see "WCH PCI Express => DUAL SERIAL" or similar entries without any yellow exclamation marks. Technical Specifications
The is a PCI Express (PCIe) expansion card used to add legacy serial (RS-232) and/or parallel (LPT) ports to modern computers . It is powered by the
Scroll down and look for or Other Devices . Step 3.3: Force the Manual Update Right-click the missing PCI Serial Port or CH382 entry. Click Update driver . Choose Browse my computer for drivers .
If you can tell me if you're using , I can confirm if you need to take any extra steps with the installation. CH38XDRV.EXE - Nanjing Qinheng Microelectronics Co., Ltd. CH341 is for USB-to-serial; CH382 is for PCIe-to-serial
After physically installing the card and booting Windows, the operating system will not recognize the card. Instead, it typically displays an error in Device Manager, such as a yellow triangle next to "PCI Serial Port" or "PCI Simple Communications Controller" with an error code like indicating drivers are missing.
The drivers are Microsoft WHQL certified, ensuring compatibility and stability for Windows 10 users. Nanjing Qinheng Microelectronics Co., Ltd. How to Install the Driver on Windows 10
A Code 10 error usually points to a resource conflict or a hardware seating issue.
Click , navigate to the extracted folder containing the downloaded driver files, and ensure the box for Include subfolders is checked.
Find the entry labeled "PCI Serial Port" (usually under "Other devices" or "Ports"). Update Driver: Right-click the device and select Update driver "Browse my computer for drivers"