: USB 2.0 4-port 480Mbps PCI cardPCI bus-master access. Hot-pluggable: allows plug and play connectivity. Enhanced speeds: data moves up to 480Mbits/s (Mb/s)High-speed (480Mbps), full-speed (12Mbps) and low-speed (1.54Mbps) data transfer rate. Reliability: complies with OHCI, EHCI and PCI standardCompatibility: supports USB 1.1 and 2.0 under Windows 98 SE, Me, 2000 and XP. Via Chipset USB 2.0 5 Port (4 Eeternal Port+ 1 Internal Port) PCI CardSupports Up to 127 devices. Supports Device hot swap and wake-up. Support All USB-compliant devices. Support Windows 98, ME, 2000, XP,Vista Operating System. Support System:Vista,Windows ME/XP/2000/98 /SECompliant with:Universal Serial Bus Specification Revision 2.0Open Controller Interface Specification for USB 1.0aEnhanced Controller Interface Specification for USB 0.9532-bit 33MHz interface compliant to PCI Specification release 1.1Material:PCB+metalcolour:BlackPackage Contents:1 x USB 2.0 4 Port VIA HUB PCI Controller Card AdapterOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.