This is easily the best available ESP32 terminal! It comes with a dedicated hardware USB-Serial chip as well as the built-in level shifters (3.3V-5V) for UART, I2C and D1 lines. Very easy to integrate with all kinds of custom circuitry. I hope Elecrow will NOT discontinue this model in favor of their "Advanced" product line. The only minor negative is that all the connectors are oriented sideways instead of facing downwards as would have been more convenient for integration into custom enclosures. This is now my go-to terminal for all kinds of custom devices.