PCI-Express-USB 3.0 2 port card 10 times faster than High Speed USB (Universal Serial Bus) 2.0 Complies with PCI Express Base
Specification Revision 2.0 Complies with Universal Serial Bus 3.0
Specification Revision 1.0 Backward compatible to USB (Universal Serial Bus) 2.0 & PCI-Express 1.0 Supports the following data Transfer Rate: USB (Universal Serial Bus) 2.0 Mode Up to 480mps USB (Universal Serial Bus) 3.0 Mode up to 5gps Max 5w/900m A Power output to each USB (Universal Serial Bus) 3.0 Port 4-Pin Power Connector for Extra Power Supports Windows XP/32/64 -bit Vista 32/64-bit & Windows 7 32/64 -bit