Description:

If You Have an Extra Internal on-board USB 3.0 Port and Want to Create Two More External USB Ports on the Back of Your Computer, This Cable will meet.
Add USB ports without having to take up any PCI slots
Connectors: USB 3.0 Female (x2), 20 pin USB 3.0 Motherboard Connector Header
Cable Length: 50cm / 1.5Feet, Long enough for most PC Case
Comes with bracket, Easy to install, no Additional Drivers are Necessary

Specification:

Connectors:
USB 3.0 Female (x2), 20 pin USB 3.0 Motherboard Connector Header
Cable Length:
50cm / 1.5Feet, Long enough for most PC Case
Comes with bracket.
Transfer Speed: USB 3.0 5Gpbs.
Hardware requirements:
Available 20 pin USB 3.0 Motherboard Connector Header;
Available PCI Slot on PC Case.

Package Includes:

1 x USB 3.0 Back Panel Mainboard 20pin Expansion Cable