Type: PCI to Serial Port Card External Ports: 1 x Serial Port Operating Systems Supported: Windows 95, 98, ME, 2000, NT4.0, XP, Vista, Linux & DOS Operating System Features: Easy plus & play installation and automatically selects IRQ and I/O address Support PCI IRO sharing and saves valuable resources for other expansion card Support Re-mapping to Legacy Addresses Support 32-bit PCI Bus. PCI Specification 2.1 Parts: 1 year limited Labor: 1 year limited