Review on π IO Crest 4-Port RS-232 Serial PCI Express 2.0 X1 Controller Card Components SI-PEX15042 by Josh Sharp
Not compatible with RS-232 I/O ports
The product name says it's RS-232 but my techs told me it's not RS-232 it's RS-422 and PC-485 . I had to send back and buy another item.
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