The CH340 driver is a device driver for the CH340 chip, which is used in a variety of USB-to-serial adapters and other devices. The driver is necessary for the computer to recognize and communicate with devices that use the CH340 chip. It can typically be downloaded from the manufacturer’s website or from a reputable third-party website. Once installed, the driver allows the computer to communicate with the device using a USB connection.
When downloaded the CH340 driver,Open the folder and double-click setup.exe
When you plug in the USB data cable again, you will see it in the device manager.