Fully Compliant with PCI-e Base Specification, Revision 1.0aPCI-e Multi Function Peripheral Controller with x1 InterfaceSupport for D1, D2, D3hot and D3coldUtilizes 100-Mhz Differential PCI-e Common Reference ClockSupports PCI-e Power ManagementSerial Port:2 16c450/550/Extended 550 Compatible UARTsSupports RS232 ModesBi-directional Speeds from 50bps to 16Mbps/PortFull Serial Modem ControlSupports Hardware, Software Flow Control5, 6, 7, 8 and 9-bit Serial SupportSupport MODEM Modem Signals , , RI, DCD, the DTR, , Convert RS232 LevelEven, Odd, None, Space & Parity SupportedCustom Rates Supported with External Clock or by Programming Internal PLLOn Chip 256 Depth FIFOs in Transmit, Receive Path of Each Serial PortSupport Remote and Power management FeaturesSerial Port Transceiver Shutdown SupportSupport Slow IrDA on all Serial PortsSoftware RequirementWindows 8Windows 7VistaWindows XPWindows Windows 98SEServer 2003Server 2000 (32bit only)Linux 2.4 & 2.6 10.4 & Abovesize:14x13x4cm Material:ABScolour:As shownPackage Contents:1 x Ports Serial Controller CardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.