16C1050 UART Windows/Linux TAA Compliant - Level-4 ESD Protection PCIe Serial RS-232/422/485 Black Activity ASIX -. 16C1050 UART Windows/Linux TAA Compliant - Level-4 ESD Protection. 4-PORT PCIE SERIAL CARD: On-board DIP switches allow each DB9 serial port to operate in its own independent mode enabling the connection of RS-232 RS-422 and RS-485 devices; LED indicators to monitor data transmit/receive status.
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