Full Details on Amazon.com : http://www.amazon.com/gp/product/B005AS33HO?tag=tsukuyomi-20
D-Link 2-Port USB 3.0 ExpressCard (DUB-1320)
Add 2 USB 30 ports to your laptop
Backward Compatible to USB 20 and USB 11
Transfer rates of up to 5Gbps - 10X faster than USB 20
Up to 900mA of power per port with the included power adapter
Connect up to 127 USB devices by cascading multiple hubs
Easy Installation hot-swap compliant
