StarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe Serial DB9 Controller Card 16550 UART - Low Profile - Windows/Linux - 1 port PCI Express RS232 serial controller card w/16550 UART/ASIX MCS9922CV-AA - Bi-directional speeds 921.6Kbps/port | 256 byte FIFO | Pin 9 pwr out 5v/12v/none - Expansion card w/low profile (Std bracket incl) - Win/Linux