Feature:1. Serial port expansion card can automatically assign IRQ and I/O addresses, very practical2. There is no switch, no jumper, which can allow you to easy setting with software, very convenient3. The product adopt 32-bit bus design, support PCI 2.1 specification, very useful in your life4. PCI to COM serial port expansion card using high-speed I/O controller (16C550C or compatible UART)5. Support for Windows95/98/98SE/2000/ME/NT4.0/XP/VISTA (32bit and 64bit)/WIN7(32bit and 64bit)/Linux and DOS/OS and other systemsSpecification:Item Type: Serial Port Expansion CardMaterial: PCBColor: Black boardTransfer Type: PCI to COM 9-pinTransmission Rate: Up to 1 Mbytes/sec32-bit bus design, support PCI 2.1 specificationAdopt high-speed I/O controller (16C550C or compatible UART)Compatible System: For Windows95/98/98SE/2000/ME/NT4.0/XP/VISTA (32-bit and 64-bit)/WIN7(32-bit and 64-bit)/Linux and DOS/OS, etc. .Package List:1 x Serial Port Expansion Card1 x Driver CD