Tripp Lite 2-Port DB9 RS232 PCI Serial Adapter Card Low Profile 16550 UART - Low-profile Plug-in Card - PCI - PC, Linux - 2 x Number of Serial Ports External

Works with Windows and Linux Complies with PCI Local Bus Specification Revision 2.3 Compatible with universal 3.3V and 5V 32-bit PCI/PCI-X slots Compatible with industrial standard 16550 UART Each port supports data transfer rates up to 115.2 Kbps