Fully compliant with PCI-E base Specification, Revision 1.0A Support for D1, D2, D3hot and D3cold Utilizes 100-MHz Differential PCI-E common reference Clock 2 16C450/550/extended 550 compatible UART Bi-directional speeds from 50bps to 16Mbps/port Fully Compliant with PCI-e Base Specification, Revision 1.0 a Support for D1, D2, D3hot and D3cold Utilizes 100-Mhz Differential PCI-e Common Reference Clock Custom BAUD Rates Supported with External Clock or by Programming Internal PLL 5, 6, 7, 8 and 9-bit Serial Format Support Support MODEM Signals CTS, DSR, RI, DCD, the DTR, RTS, Convert RS232 Level