The WCH CH340T is a USB-to-serial converter chip developed by Nanjing Qinheng Microelectronics (WCH), designed for reliable USB communication in embedded and industrial applications. It supports standard serial interfaces and is commonly used to connect microcontrollers, development boards, and industrial equipment to computers via USB. The CH340T is widely compatible with Windows, Linux, and macOS through dedicated drivers, offering stable data transfer and low power consumption. Its compact design, affordability, and broad software support make it a popular choice for Arduino-compatible boards, debugging tools, and serial communication adapters in both hobbyist and professional environments.