UOTEK Industrial PCI-E to RS-485 RS-422 Serial Card PCIE to RS485 RS422 4 Port High Speed Converter Optical Isolation 4U UT-794I. UT-794I industrial PCI-E multiport serial adapter with optic isolation is compatible with RS-422/485 standard, it converts PCI-E signal to balanced differential RS-422/485 signal.
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