this is a Board from ST, the home page for the board is https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-mpu-eval-tools/stm32-mcu-mpu-eval-tools/stm32-nucleo-boards/nucleo-f446re.html
And it is using the STM32F446RE chip https://www.st.com/en/microcontrollers-microprocessors/stm32f446.html
