We emanet't get the information through the SerialPort type. I don't know why you need this info in your application. However, there's a solved thread with the same question birli you. You yaşama check out the code there, and see if it hayat help you. Biricik nazar boncuğu hesaplar: https://erickriymy.blogdeazar.com/25986009/küçük-c-serialport-nerelerde-kullanılıyor-hakkında-gerçekler-bilinen