Setting up a on Windows 10 can be tricky because many Chinese-manufactured models use older USB-to-Serial technology that requires specific virtual COM port drivers. Essential Driver Requirements
Most 721 series plotters do not have a "true" USB interface. Instead, they contain an internal USB-to-Serial chip. To make your PC recognise the device, you must install one of the following virtual COM port drivers: Common for high-quality serial conversions.
Right-click the device > > Port Settings > Advanced . rohs cutting plotter 721 drivers windows 10
Run the installer before plugging in the plotter.
Look under . Your plotter should appear as "USB-Serial CH340" or similar, assigned to a port like COM3 . Configure the Port: Setting up a on Windows 10 can be
Frequently used in Chinese-manufactured hardware.
Obtain the driver .exe or .zip file. Right-click and extract the contents. To make your PC recognise the device, you
Often found in older or legacy 721 models.
