Features: 1.STABLE USAGE: Mini PCIE to 19Pin expansion card uses for TAIYO capacitors, which greatly ensures the stability of USB power supply. 2.HIGH SPEED: Mini PCIE to USB3.0 adapter has a maximum transfer rate of up to 5Gbps, much higher than the 480Mb/s of USB2.0, up to 10 times. 3.4 INTERFACES: Mini PCIE to 19Pin adapter has a built in SATA enhanced power up interface, which can be extended with 4 USB3.0 interfaces. 4.HOT PLUGGING: Mini PCIE to 4 Port 19Pin adapter supports USB hot plugging function, which is safe and convenient to use. 5.SUPPORT SYSTEM: Mini PCIE to 4 USB3.0 adapter supports for Windows XP 2003 Vista win7 win8, for OS X 10.8 or above system, etc. specification:Item Type: Mini PCIE to USB3.0 Adapter Material: PCB Main Control Chip: for Renesas UPD720201 Chipset Transmission Rate: 5Gbps Charging Interface: SATA Interface Support System: for Windows XP 2003 Vista Win7 Win8, for OS X 10.8 Or Above PackageList: 1 x Expansion Card 4 x Screws