Four Serial Port RS-232/RS-422/RS-485 I/O Port mini Card
MPX-4232
Specifications
Description
Supports 2 x RS-232, 2 x RS-422 or 2 x RS-485
USB 2.0 High Speed (480Mbits/Second) and Full Speed (12Mbits/Second) compatible
RS-232/RS-422/RS-485 UART Transfer Data Rate up to 12Mbaud.