Convert a USB port into 16 RS232 serial ports in an industrial rack-mountable chassis and daisy chain multiple hubs for a scalable solution 16-Port USB-to-Serial Adapter Hub USB to RS232 port adapter with FTDI chipset and COM port retention Rackmountable all-metal chassis RS232 multiplexer with 921.6 Kbps baud per port Meets the demands of industrial environments with extended operating temperature range: -40°C to 85°C (-40°F to 185°F)