2 Port PCI RS-422/485 Card w/ DB9
This high performance RS-422/485 multiport serial PCI card suits a broad range of environments, and is a perfect addition for connecting two-wire (with Auto Transceiver Turn Around feature, ATTATM) and four-wire configured serial devices to a host computer. Compliant with PCI 2.2 standard specifications, PCI2S485 offers a high performance 16C950 compliant UART offering maximum data transfer rates of up to 921kbps, and offers broad compatibility with any available 3.3V or 5V PCI or PCI-X slot.
StarTech.com 2 Port PCI RS-422/485 Card w/ DB9, PCI-X, 2 - DB9 M, Oxford OX16PCI952, 65 mm, 120 mm, 130 g
StarTech.com 2 Port PCI RS-422/485 Card w/ DB9. Host interface: PCI-X, Connector(s): 2 - DB9 M. Chipset: Oxford OX16PCI952. Width: 65 mm, Depth: 120 mm, Weight: 130 g. Transfer rate: 0.921 Mbit/s, Connectivity technology: Wired