This card is finished to a high standard to allow for easy and safe installation, and it is backed by the LINDY full technical support service. The finger contacts are gold-plated to limit oxidisation and extend the life of the card.- Bus Type: 32 Bit PCI- Speed: Up to 920Kbit/sec- I/O Address: "Plug & Play"- Supports 3.3V and 5V motherboards- DC 5V output for DB9 selected by jumper- Standard and Low Profile back plates included- IRQ Selection: "Plug & Play"- External Connector: 1 x 44 Way D Female- Adapter Cable: 44 Way D Male to 4 x 9 Way D Male- Software Compatibility: DOS, Windows 98SE/ME/NT/2000/XP/Vista/Windows 7/Server 2003, 2008- Chipset: Oxford semiconductor.