This card provides 1 industry standard 9 pin RS232 serial COM port in a single low profile PCI slot. As PCI is fully Plug & Play compatible the operating system or BIOS automatically configures the card ensuring conflict free installation. Intashield offers a good serial connection at a great price. Many applications just need a simple, reliable serial connection, no high baud rate or powered cards, no opto-isolation, no custom options or alternative connectors, simply fit and forget RS232 serial.