Specifications:
Support Win 8 /8.1/10/11 and Linux without driver installation
2 x external and 2 x internal USB3.0 port
Each port provides DC 5V 1A via USB 3.0 connector
Connect to Floppy power cable of power supply or 4 Pin molex power connector with the included converter cable
NEC 720201 chip set
Complies with PCI Express Base Specification Revision 2.0
Complies with Universal Serial Bus 3.0 specification Revision 1.0
Backward compatible to USB 2.0 and PCI-Express 1.0
Connect to PC power supply to provide enough current for each port
Transfer Rate: 5Gbps 480Mbps, 12Mbps
Fully compatible with USB2.0 , USB 1.1

Package Contents :
1 x PCIE USB 3.0 adapter
1 x Floppy Power to 4 Pin Molex Power converter cable