Can i use this Converter for MEGA2560's serial pins 14-19 or it will only works for pins 0 and 1? Also can I connect more use more than one converter in my project (i need two RS23...

Can i use this Converter for MEGA2560's serial pins 14-19 or it will only works for pins 0 and 1? Also can I connect more use more than one converter in my project (i need two RS232 ports)?
https://www.arduino.cc/reference/en/language/functions/communication/serial/