Wch Ch382l Driver Windows 10

Source: WCH official website (safe & recommended)

Note: The driver supports Windows 10 (32 & 64-bit), 8, 7, Vista, XP.

Check in Device Manager under:

Q: Does the CH382L require an external power connector?
A: No, it draws power entirely from the PCIe slot. wch ch382l driver windows 10

Q: Can I use two CH382L cards together for 4 LPT ports?
A: Yes, but you may need to manually assign I/O ranges via registry editing. Windows 10 supports up to 3 parallel port devices.

Q: My CNC software (Mach3, LinuxCNC, etc.) doesn’t see the port – why?
A: Many real-time CNC applications require direct port I/O. The CH382L uses memory-mapped I/O. You may need a different card (e.g., using PCIe-to-LPT based on NetMos 9865 or WCH CH353L).

Q: Does this driver work on Windows 11?
A: Yes, the same CH382L driver for Windows 10 (x64) works on Windows 11 with identical installation steps. Source: WCH official website (safe & recommended)

Q: Uninstalling the driver – how?
A: In Device Manager, right-click the parallel port > Uninstall > check “Delete driver software”. Also remove C:\Windows\System32\drivers\CH38X.sys.

The CH382L supports SPP, EPP, and ECP modes. Set these in Device Manager > LPT port properties > Port Settings tab. Default “ECP+EPP” works for 99% of devices.

The WCH CH382L driver for Windows 10 is the critical link between legacy serial equipment and modern PCIe-equipped PCs. While installation can be challenging due to driver signing requirements and Windows 10’s strict hardware policies, following the steps outlined in this guide will lead to a stable, high-performance dual-port serial solution. Note: The driver supports Windows 10 (32 &

To recap:

By mastering the CH382L driver installation on Windows 10, you extend the life of your serial peripherals and maintain critical industrial workflows without expensive hardware upgrades. Whether you are a system integrator, an electronics hobbyist, or an IT professional, this guide equips you with everything needed to get your CH382L up and running reliably.

Final tip: Bookmark the official WCH driver page and check for updates biannually. While the CH382L is mature, WCH occasionally releases performance patches and security updates.