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SENA offers serial connectivity product line that includes Multi-port Serial Cards, USB to serial converters and Serial to serial converters.
The DirectPort product family of universal PCI multiport serial cards is designed to provide flexible expansions of high performance serial ports to the computers to meet the diverse and unique requirements easily and cost-effectively. USB to serial converters products converts USB data to RS232/422/485 serial data. Serial to serial converters products changes RS232 data to RS422/485 data.