FOR PCI-1611U 4-Port RS-422/485 Universal PCI Communication Card with Surge Isolation Protection

The FOR PCI-1611U is a universal PCI communication card that provides four serial interfaces compatible with RS-422 and RS-485 standards. Designed for reliable data links in industrial and multi-drop environments, this card installs into a PCI slot to add four isolated serial ports. Built-in surge isolation protection helps guard connected equipment against transient voltage spikes and electrical interference. Ideal for expanding legacy serial connectivity on PCs and control systems where robust protection and multiport serial support are required.