Features: 1.5GBPS: Mini PCIE front expansion card maximum transfer rate up to 5Gbps, much higher than USB2.0 480Mb/s, up to 10 times. 2.4PIN INTERFACE: Mini PCIE to USB3.0 adapter built in small 4PIN enhanced power supply interface, can be expanded by four USB3.0 interface. 3.STABLE POWER SUPPLY: The expansion card uses solar induced capacitance, which greatly ensures the stability of USB power supply. 4.PLUG AND PLAY: Mini PCIE front expansion card supports USB hot swap function, plug and play, no driver required. 5.SUPPORT SYSTEM: Mini PCIE to USB3.0 expansion card supports for Windows XP, for 2003, for Vista, for win7, for win8, for 2003, for OS X 10.8 or above, etc. specification:Item Type: Mini PCIE to USB3.0 Front Expansion Card Material: PCB Main Control Chip: For uPD720201 Chipset Transmission Rate: 5Gbps Charging Interface: Small 4pin Interface Support System: For Windows XP, for 2003, for Vista, for win7, for win8, for 2003, for OS X 10.8 or Above PackageList: 1 x Expansion Card 1 x Power Supply Line NoteOnly for Mini PCIE interface applications, other than the other interfaces are not available