You need the specialized USB driver designed for the CH340/CH341 USB chip commonly used in Redsail plotters.
If the executable installer fails, you can force Windows to recognize the driver manually.
I can provide targeted troubleshooting steps to get your machine cutting immediately. Share public link redsail cutting plotter usb driver install
Look for an entry named or CH340 Virtual COM Port .
Are you using or a CorelDraw plug-in to send your designs to the plotter? You need the specialized USB driver designed for
Select an unused port between . Ignore any "In Use" warnings unless you know another active device is actively occupying that port. Click OK to save, then restart your computer. Step 5: Configure Your Cutting Software
Look for an entry named or CH340 USB Serial Port (COMx) . Share public link Look for an entry named
WinPCSIGN is another software package often included with Redsail machines. One of its main features is that it can interface directly with the cutting plotter.