SystemBase Chipset: SB16C1058PCI Cards Per Computer: Any Number Allowed by PC (Typically 4). Compatible with Industrial Standard 16C550 UART On-chip 256-byte Transmit FIFO and 256-byte Receive FIFO for Each Serial Port. Fast Data Rate up to 115.2Kbps on Each Port (Special Version can Support up to 1Mbps) Supports Hardware and Software Automatic Out-of-band Flow Control. Supports Hardware and Software Handshaking Supports 5-, 6-, 7-, 8-bit Serial Format. Supports Even, Odd, or No Parity Bit Generation and Detection. Supports 1, 1.5, or 2 Stop Bit Generation Easy Installation, Automatically Selects IRQ and I/O Address. Supports PCI IRQ Sharing Feature, Saves Valuable Resources for Other Add-on Cards Fully Compliant with PCI Local Bus Specification Revision 2.3. Supports PCI Power Management