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From 11:00 PM CST Friday, Apr 11th - 1:30 PM CST Saturday, Apr 12th, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
2-Port, PCI, RS232 Serial Interface Device—The PCI‑8430/2 is a high-performance interface for high-speed 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.