StarTech.com 4 Port PCI Express RS232 Serial Adapter Card with 16950 UART - Serial adapter - PCI Express x1 - RS-232 - 4 ports
Get more out of your serial devices! StarTech.com's PEX4S950 gives you two high performance 16C950 serial UART channels/ports for connecting any new or old serial peripheral, with data transfer rates of up to 250 Kbits/sec.