Specifications:
Newest Solution, Supports USAP ( USB Attached SCSI Protocol ) of Windows 8
Most probably the fastest USB 3.0 4 Port Adapter Card in the market
Maximum speed is about 385MB/s ( see testing result photo )
No Driver needed for Windows 8/10/11
PCIE X1 , 2.0 standard, VLI chipset
4 x external USB3.0 port
Each port provides DC 5V 1A via USB 3.0 connector
Connect to PC power supply with SATA Power Connector
Transfer Rate: 5Gbps, 480Mbps, 12Mbps
Fully compatible with usb 3.0, USB2.0 , USB 1.1 and USAP
Supports Windows XP / 2003 / Vista / 7 / 8 / 10/11

Package contents:
1 x PCIE USB 3.0 adapter