SYBA PCI-Express 4 Port Serial Card Model SY-PEX-4S Type: PCI Express to Serial Port Card External Ports: 4 x Serial Ports Operating Systems Supported: Windows 32bit 2000/XP/2003 Sever/Vista and 64bit XP/2003 Server/Vista Linux Kernel 2.6.11 & above Mac 10.4 & above Specifications: 16C450/550/Extended 550 compatible UARTs Supports RS232, RS485 & RS422 modes (need a RS232 to RS485/RS422 Adaptor) Bi-directional speeds from 50 bps to 16Mbps/Port Full Serial Modem Control Supports Hardware, Software flow control 5, 6, 7, 8 and 9-bit Serial format Support Even, Odd, None, Space & Mark parity supported Custom BAUD Rates supported with external clock or by programming internal PLL On Chip 256 Byte depth FIFOs in Transmit, Receive path of each Serial Port Supports remote wakeup and power management features Serial Port transceiver shutdown support Support slow IrDA on all Serial Ports...