Parallel Port Driver | Ch351q

The CH351Q competes with other solutions:

To use a CH351Q parallel port card, you must install the appropriate manufacturer drivers to ensure the operating system correctly assigns I/O addresses and IRQs. Official Driver Package: The primary driver for this chipset is the You can find the latest version on the official WCH Download Page Supported OS: ch351q parallel port driver

MacOS dropped native parallel port support after 10.14 Mojave. However, the CH351Q can work with the open-source kext (not recommended for production). Most users find better results using a USB-to-parallel adapter or running Windows via Boot Camp. The CH351Q competes with other solutions: To use

Check for any "!" or "?" icons which indicate a driver conflict. ⚠️ Important Troubleshooting I/O Address: Unlike built-in ports (fixed at ), PCI cards assign addresses dynamically Most users find better results using a USB-to-parallel