This is an Isolated USB to UART interface. This enables isolated communication between various microcontrollers and the computer/laptop. The module is connected to a computer via a USB connection and the pins of the module can be connected to any microcontroller, Arduino, Raspberry PI, etc... The product is built with the original FTDI chip and enables high-speed UART communication. This module is also breadboard-friendly. Isolated USB to UART provides safety to computer/ laptop, As any problems caused in the project/circuit will not pass on to the computer.