Bus Type: 32 Bit PCIVoltage: 3.3V (No 5V support) Speed: Up to 2.7 M Bps I/O Address: LPT 1-6IRQ Selection: Plug & Play Card Connector: 25 Way D Female Software Compatibility: DOS, Windows 98SE/ME/2000/NT/XP/ Server 2003, 2008/ Vista/7, Linux 2 year warranty