Features 3 external and 1 internal (shared) USB 2.0 ports!Easily upgrade your computer or add additional high speed ports with this 32 Bit PCI Express Bus card. This card is finished to a high standard to allow for easy and safe installation, while it is also backed by the LINDY technical support service. The finger contacts are also gold-plated to limit oxidisation and extend the life of the card.- Bus Type: PCI Express Bus- Speed: Up to 480Mbps- Chipset: VT 6212L- Compliant with USB 2.0 specification- Compliant with EHCI specification rev 0.95- Compliant with UHCI specification rev 1.1- Supports x1, x2, x4, x8 and x16 lane PCI Express Bus- Connectors: 3 x Type A USB Female (External) + 1 x Type A USB Female (Internal shared)- Software Compatibility: Windows 2000/XP/Vista/Windows 7/Server 2003, 2008.