Often identified by USB\VID_067B&PID_2303 (Prolific) or USB\VID_1A86&PID_7523 (CH340). Microsoft Update Catalog
3.8.19.1 (Latest stable release for most Z-TEK models) Release Date: January 19, 2018 Z-tek Usb To Serial Comm Port Driver Free Download
If your software requires a specific port (e.g., COM1), you can change this in Device Manager > Port Settings > Advanced . Remember to restart your computer for the change to take full effect. Driver Specifications Z-tek Usb To Serial Comm Port Driver Free Download