Leave a comment below (if on a blog) or check the manual that came with your Amsamotion device. The chip model is often printed on the USB connector’s metal shield. Look for "CH340G" or "PL2303HX" to confirm 100% which driver you need.
What does Device Manager show (e.g., Error 10 or Code 28)? I can help troubleshoot the specific error for you. Share public link amsamotion usbcn226 driver download link