“StarTech.com Industrial RS232 to RS422/485 Serial Port Converter with 15KV ESD Protection – Convert an RS232 data signal to either RS485 or RS422 with this wall-mountable, ESD-protected adapter – Industrial RS232 to RS422/485 Serial Port Converter w/ 15KV ESD Protection – RS232 to RS485 Serial Converter – RS232 RS422 Adapter – RS232/422/485 SERIAL PORT ADAPTER WITH ESD” has been added to your cart. View cart