| StarTech 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 Model PEX4S232485 Type: PCI Express to Serial Port Card External Ports: 2 x RS232 2 x RS422 / RS485 Operating Systems Supported: Windows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64), 2000 Windows Server 2008 R2, 2003(32/64) Linux Kernel 2.6.x Specifications: Data Bits: 5, 6, 7, 8   FIFO: 256 Bytes   Flow Control: None, Xon/Xoff, RTS/CTS   Max Baud Rate: 460.8 Kbps   Parity: None, Odd, Even, Space, Mark   Serial Protocol: RS-232/422/485   Stop Bits: 1, 1.5, 2   Supported Protocols: RS-232, RS-422, RS-485 2-wire / 4-wire Dimensions: 0.6 x 2.7 x 5.3 Weight: 2.4 oz. Package Contents: 1 - PCI Express Serial Combo Card  1 - Breakout Cable  1 - Low Profile Bracket  1 - Driver CD  1 - Instruction Manual |