Features: 
A super fast and high-capacity data transfer solution. 
Stable and reliable Chipset . 
Compliant with USB 3.0 specification Revision 1.0 . 
Compatible with USB 2.0 & 1.1 specification. 
Compliant with Single-Lane (x1) PCI-Express throughput up to 5Gbps. 
Supports 2.5Gbps PCI-E bus with full duplex channel. 
4 USB 3.0 type A female connectors available. 
Plug & play and hot swapping capability. 
Bus-powered mode and no external power required for most of peripherals. 
4-pin power connector available for some high current consumption peripherals， like HDD. 
Support for Windows XP /for Vista / 7 /for Server 2008. 

Specifications: 
Device Type:4 Port USB 3.0 HUB PCI-E Adapter 
Interface Type:USB 3.0 
Data Transfer Rate:5.0 Gbps 
Weight:66g 

Package Included: 
1 x 4 Port USB 3.0 HUB PCI-E Adapter. 
1 x Driver CD