Are you using , Artcut , or CorelDRAW as your primary cutting software? CH341SER.EXE - Nanjing Qinheng Microelectronics Co., Ltd.
To download the Jinka 721 driver for Windows 10, follow these steps: download driver jinka 721 for windows 10 work
The most reliable source is the that came in the original packaging of your Jinka 721. This disc contains the USB driver, USB‑to‑serial drivers (if needed), CorelDRAW plug‑ins, and user manuals. Check the machine’s box or accessories — it’s usually stored in a paper sleeve along with the blade holder and power cables. Are you using , Artcut , or CorelDRAW