PCI one chip solution(OXFORD OX16PCI952)

This dual-port port  RS-422/485 PCI bit PC card each port offer data transfer rate up to 
115200Kbps with built-in 128-byte FIFO buffer to give you maximum system performance 
and efficiency.This card also provides full modem control signals to ensure compatibility 
with kinds of  RS-422/485 peripherals. It’s created for use in the industrial sector and as 
well ideal for home or office uses.  * Expands 2 independent DB9 RS-422/485 serial ports through 32-bit PCI slot
* High speed 16C950 compatible UART controller on-board
* On-chip hardware auto flow control to guarantee no data loss
* Each serial port has built-in 128K byte DMA software FIFO
* Supports DOS, Windows 98/Me/NT/2000, XP, Server 2003 ,Vista and Linux