Before downloading, it is critical to understand what hardware you actually have. The is a PCIe-to-Interface chip manufactured by Nanjing Qinheng Microelectronics (WCH) .
Avoid third-party aggregators. If your CH382L card was bought cheaply from an unknown brand, test the driver first with a loopback test (e.g., using debug to write/read parallel port pins) before trusting it with expensive equipment.
The safest and most reliable source is the official Jiangsu Qinheng Microelectronics website. CH38X ZIP / CH38XDRV.EXE
Check the box for "Filter Resource Method" if your legacy software requires traditional mapping, then click . Restart your computer to apply the changes. Common Troubleshooting Steps wch ch382l parallel port driver download
If it appears without a yellow exclamation mark, your hardware is successfully installed and ready for use. 🔧 How to Configure and Troubleshoot the CH382L LPT Port
Once installed, your parallel port should appear under Ports (COM & LPT) as "WCH PCI Express => Parallel Port (LPT1)". Linux Configuration CH38XDRV.EXE - Nanjing Qinheng Microelectronics Co., Ltd.
If the automated executable fails, you can install the driver manually: Before downloading, it is critical to understand what
If you need help configuring the driver for a specific operating system or piece of legacy hardware, please let me know:
| Issue | Potential Cause | Solution | | :--- | :--- | :--- | | (no yellow triangle in Windows Device Manager) | The PCIe card may not be seated properly. | Power off the PC, unplug it, firmly reseat the PCIe card, and secure it with the bracket screw. | | Parallel port works, but serial ports do not (on combo card) | The card might be configured as a pure parallel port device (Device ID 0x3050). | Update your Linux kernel to version 4.14+, use the WCH vendor driver, or check if your card's jumpers can change the Device ID to 0x3250. | | Driver installation fails (INF error) | The driver package is for a newer Windows version. | Right-click the .INF file and select "Install," or run the CH38XDRV.EXE installer in Windows 8 compatibility mode if on an older OS. | | Parallel port address is not 0x378 | The default PCIe assignment is different from the legacy DOS address. | Use the EEPROM configuration tool included in the CH38XDRV package (e.g., PCISETUP.exe ) to remap the parallel port's I/O address. WCH chips can often be remapped to 0x378/0x278 ranges via a DOS utility or EEPROM tool. |
: A one-key installation version often recommended in community support threads. Nanjing Qinheng Microelectronics Co., Ltd. Compatibility Information Supported Systems If your CH382L card was bought cheaply from
If you have trouble finding it, reply with your operating system, and I can give you more specific instructions or a verified download link.
: You can find the latest installation package at the WCH Official Download Page . File Name : CH38XDRV.ZIP or CH38XDRV.EXE . File Size : Approximately 6.02 MB. Release Date : Latest major update on November 11, 2021.