- 1 on-board DB9M RS232 port - Universal 3.3v/5v PCI bus slot support (PCI 2.3 compliant) - PCI-X compatible - Low profile card with standard bracket and low profile bracket included - 16550 UART for software compatibility - 921.6Kbps bi-directional serial communication speeds - 15 kV electrostatic discharge protection - Full modem control and hardware/software flow control