Ch351q Parallel Port Driver _hot_ Jun 2026

Execute CH35XDRV.EXE as Administrator. It should detect the CH351Q and install it as "WCH PCI LPT Port".

It handles SPP, PS/2, EPP, and ECP modes, ensuring compatibility with the IEEE 1284 printing protocol. ch351q parallel port driver

If you are using Windows 10 or 11, the OS may attempt to install a generic driver. Always use the manufacturer driver for the most stable data transfer speeds (up to 1.5 Mbps). Do you need help finding the I/O address for a specific software, or are you having trouble with a specific operating system Execute CH35XDRV