Cutting Plotter Model 721pe Driver Work Download -

Downloading and installing drivers for the 721PE cutting plotter (often branded under

• URL: http://www.liyu.com.cn/download/ or http://www.redsail.cn/support/
• Look for drivers labeled "Liyu SC Series" or "Redsail RS Series."

The "PE" usually designates a specific control panel version or a slight hardware revision. cutting plotter model 721pe driver download

1. Back up the installer to an external drive or cloud storage.
2. Document your COM port settings (baud rate, flow control) inside the machine manual.
3. Save the .inf file – it can be used to reinstall even without the original setup.exe.

You should see "USB-SERIAL CH340" or similar, followed by a port number (e.g., COM3). Configuring Your Cutting Software Downloading and installing drivers for the 721PE cutting