If you see the devices listed without any warning icons, your driver is correctly installed and your card is ready for use.
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Turn off your PC and move the CH382L card to a different PCIe slot. If the issue persists, enter your motherboard's BIOS/UEFI settings and ensure that the PCIe slot configuration is set to "Gen 1" or "Auto" rather than "Gen 3/4". 2. COM Port Number Assignment is Too High
The primary driver package for the CH382L on Windows 10 (32/64-bit) is the CH38XDRV.EXE If you see the devices listed without any
Look for entries flagged with a yellow exclamation mark under . They will usually appear as PCI Serial Port or PCI Simple Communications Controller .
Windows 10, in its infinite wisdom, had looked at the board’s interface chip and shrugged. In Device Manager, it sat as an angry yellow triangle labeled "Unknown Device." If you share with third parties, their policies apply
The CH382L is a chip made by a company named Nanjing Qinheng Microelectronics. It connects to your computer through a PCI Express slot. It adds two high-speed serial ports and one parallel port to your PC. People use it to connect old printers, scanners, and science equipment to modern computers. Where to Download the Driver
If your device isn't working or you see an error code, these troubleshooting steps may help.
The WCH CH382L is a specialized PCIe-to-Serial/Parallel bridge chip manufactured by . For Windows 10 users, installing the correct driver is essential to ensure that your PCIe expansion card correctly maps the legacy RS-232 serial or LPT parallel ports for use with industrial equipment, printers, or lab devices. Direct Download Link
You can easily get your WCH CH382L PCI Express card working on Windows 10 by installing the correct official driver. This chip controls extra serial and parallel ports on your computer. Follow this guide to find, install, and fix your driver. What is the WCH CH382L Chip?