Often found in older or legacy 721 models.
Look under . Your plotter should appear as "USB-Serial CH340" or similar, assigned to a port like COM3 . Configure the Port: rohs cutting plotter 721 drivers windows 10
Frequently used in Chinese-manufactured hardware. Often found in older or legacy 721 models
Plug the USB cable into a rear port of your PC (rear ports provide more stable power) and turn the plotter on. Verify in Device Manager: Right-click the Start button and select Device Manager . rohs cutting plotter 721 drivers windows 10