PCIe-8432/2

PCI Express, 2-Port, Isolated, RS232 Serial Interface Device—The PCIe‑8432/2 is a high-performance interface for high-speed, port-to-port isolated communication with RS232 devices. It features high-performance DMA transfers, multithreading, and multiprocessor support. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.