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Antaira's PCIe RS422/485 multiport serial cards add 1 to 8 ports to any PC and provide a cost-effective solution for connecting legacy RS422/485 serial devices to PCIe-enabled computers.
$251.00
4-port RS-422/485 PCI Express Card, Oxford Single Chip Solution, Low & Standard Profile Brackets Included (WHQL Certified)
$239.00
2-Port RS232/422/485 PCI Express Card w/Surge and Isolation
$505.00
4-Port RS232/422/485 PCI Express Card w/Surge and Isolation