Description: Condition: 100% Brand New With High Quality Support external power socket, to supply for each USB 3.0 Up to 900mA Maximum /port connection capacity Support 3 x USB ports, transfer speed up to 5Gbps Stable and reliable FL1100 chipset Specification: Material: ABS Size: 75*55*5mm Compatible with PCI-Express and 1.0a Complies with PCI express base specification revision 2.0 Complies with universal serial bus 3.0 specification revision 1.0. Support the following data transfer rate: USB 2.0 mode up to 480 Mbps USB 3.0 mode up to 5 Gbps Faster than High-Speed USB 2.0 With Intel compatible and extensible host controller interface (XHCI) Standard revision 0.95 Support rate of USB data transmission 1.5 / 12 / 480 / 5000 Mbps The built-in DC power receives additional power, to meet USB3.0 5 V/900mA output power level Hot plug, you can connect / disconnect don't turn off the power supply system equipment. Working temperature: 0 C to 57 C, humidity: 5% ~ 95% relative humidity Working voltage: + 3.3 V~ + 5 V, storage temperature: - 20 C to 85 C Support system : Windows 2000/XP/2003/Vista/WIN7/WIN8/8.1 Package Includes: 1x Adapter Expansion Card