PCI Express card provides 1 industry standard 9 pin RS422/485 serial COMports, fits in any PCI Express slot e.g., x1, x4, x8 or x16 lanes.  Features • Fits on x1, x4, x8 or x16 PCI Express expansion slot • 256 Byte FIFOs with user definable trigger level • 921,600 Baud, true...