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.