PCI one serial ports card with SystemBase Chipset SB16C1052PCI. Easy Plug & installation automatically selects IRQ and I/O address. Fully compliant with PCI Local Bus Specification Revision 2.3. Supports PCI power management. Supports PCI IRQ sharing feature, saves valuable resources for other add-on cards. Compatible with industrial standard 16C550 UART. On-chip 256-byte depth FIFO in Transmit & Receive paths of each port. Fast data rate up to 115.2Kbps on each port. Supports hardware and software flow control. Supports 5-, 6-, 7-, 8-bit serial format. Supports Even, Odd, None, Space & Mark parity. Supports 1, 1.5, or 2 Stop bit operation. Hardware: Computer with PCI slot. Windows 98SE/ME/2000/Server 2003/Server 2008/XP/Vista (Unsigned driver for Windows 64-bit)