2 Port Serial Mini PCIe Controller Card (RS-422/485)

Multi-port RS-422/485 Automatic RTS/CTS or DTR/DSR hardware flow control with programmable hysteresis Automatic Xon/Xoff software flow control RS-422/485 half duplex direction control output with programmable turn-around delay ?? This 2-port mPCI-Express serial card turns any mini PCI-E slot into two RS422(DB9) serial ports. Use this quick solution to add legacy serial support for embedded systems. Take full advantage of PCI-E capability by providing speed and reliability while reducing load to the system. Useful for Point-of-Sale systems, Remote Access Servers, and more.