Serial Port Cards
StarTech.com USB to Serial Adapter - 2 Port - COM Port Retention - FTDI - USB to RS232 Adapter Cable - USB to Serial Converter (ICUSB2322F) Black 2 Port USB 2.0 Adapter
Regular Price: US$125.99
Special Price US$104.99
StarTech.com USB to Serial Adapter - 1 port - USB Powered - FTDI USB UART Chip - DB9 (9-pin) - USB to RS232 Adapter (ICUSB2321F) 1 Port USB 2.0 Adapter
Regular Price: US$65.99
Special Price US$54.99
dynattenik 2-Port PCI Express (PCIe) RS232 DB9 Serial Host Controller Adapter - PCIe to Serial DB9 Card - Standard/Low Profile Brackets PCIE-II
Regular Price: US$47.99
Special Price US$39.99
axGear 2 Ports Dual Bidirectional RS-232 DB9 9-pin Serial Port to PCI I/O Card Adapter
Regular Price: US$23.99
Special Price US$19.99