By this cable, many serial devices with COM port (DB9 Serial Port) such as mini phone, digital camera, MODEM, ISDN terminal adapter, LED control card, 51 single chip (STC11, 1 2C series industrial equipment serial port does not support) can be connected and communicated with various PCs and notebooks. It has a built-in 128 byte TX / 512 byte RX cache, which enables it to achieve over 1Mbps data transfer rate. I do know that my board uses a CH340 USB driver. This cable is protected against electromagnetic interference. I’m not sure exactly what the problem is but I have installed the Arduino IDE on my Jetson Nano but I can’t upload any programs to the board, or use the serial monitor. This cable is a high-quality user-friendly plug and play converter, compliant with USB 2.0 and USB 1.1 and supports automatic handshake protocol. The CH340H and CH340T operate in USB to serial interface converter mode and more appreciated at the RS232 to USB converter cable, to make an interface between a COM port and USB 2.0 port. It is based on a CH340 chip. The CH340 series chip can operate in 3 modes of USB to serial interface converter mode, USB to infrared converter mode and USB to printer interface converter mode.
Description USB To RS232 DB9 Serial Port Converter Cable is an 80 cm cable with two heads of a 9 pin male DB9 connector and a USB v2.0 male, which converts RS232 port to USB port.