Once the driver is verified and installed, you must match the settings in your cutting software (like Artcut or SignMaster): Select the COM port found in Device Manager. Baud Rate: Usually 9600 or 38400. Flow Control: Hardware or RTS/CTS. Troubleshooting Common Issues
Go back to Device Manager. Under "Ports (COM & LPT)," you should now see "USB-SERIAL CH340 (COMX)." Note the number of the COM port (e.g., COM3). Step 4: Configuring Your Software -VERIFIED- Download Usb Driver Jinka 721
Most Jinka 721 models use the CH340 chipset. Before downloading, check your device. Connect the Jinka 721 to your PC via USB. Open (Right-click Start > Device Manager). Look under Other Devices or Ports (COM & LPT) . Once the driver is verified and installed, you