Features and Specifications :

Suports USAP ( USB Attached SCSI Protocol ) of Windows 8 and xHCI 1.0 compliant
Maximum speed is about 385MB/s
No Driver needed for Windows 8 and up ( Do not install driver for Windows 8 )
Native support form MAC OS ( 10.8.2 and up only )
PCIE X1 , 2.0 standard, FL1100 chipset
4 x External USB3.0 port
Each port provides DC 5V 1A via USB 3.0 connector
Transfer Rate: 5Gbps, 480Mbps, 12Mbps
Fully compatible with USB 3.1 Gen I, USB3.0, USB2.0 , USB 1.1 and USAP
Supports Windows XP / 2003 / Vista / 7 / 8 / 8.1/win 10, Linux and Mac OS 10.8

Package contents :

1 x PCIE USB 3.0 adapter
1 x Low profile bracket
1 x Driver CD