Do not waste money paying for drivers from sketchgy sites. The drivers are free.
: Ensure the COM port number in your software settings matches the number assigned in Windows Device Manager. USCutter Forum Troubleshooting Software for JinKa JK-721PE plotter - PlotCalc cutting plotter model 721pe driver download
Windows 10 and 11 will often auto-detect the 721PE as a "USB Printing Support" device. Do not waste money paying for drivers from sketchgy sites
If you can provide the brand name printed on the front of the machine (e.g., Redsail, Liyu, Teneth, Creation), I can give you a more specific link, but the FTDI driver solution resolves 90% of these cases. If you encounter issues, refer to the user
Title: Download Driver for Cutting Plotter Model 721PE
Since there is no globally standardized "Model 721PE" from a single major manufacturer, this request typically refers to a generic often sold under various brand names (like Redsail, Creation, Liyu, or generic "China" brands on eBay/Amazon).
If you encounter issues, refer to the user manual or contact the manufacturer's support team for assistance.