The USB 3.0(4 ports) has a higher transfer rates (up to 5 Gbps) which is 10 times faster than the 480Mbps limit of the old 2.0 version.
This PCI-e controller is a simple and economical and environmental solution for adding the latest high speed USB 3.0 port to any desktop computers or servers.
This card will add 4 Super Speed USB 3.0 ports to your computer and no need to change your current motherboard.
Designed to install into any PCI-Express 1X slot

Features:
4 Ports USB 3.0 interface
Connect more devices easily & quickly
Backward compatible to USB 2.0 and USB 1.1
Bus-powered mode and no external power required for most of peripherals.
Compliant with Single-Lane (x1) PCI-Express specification revision 1.0A.
Supports Hot Swap, Plug & Play.
3.0 USB cable A Male to A Male included
Super-speed (5 GB/s) High-speed (480 MB/s)
Full-speed (12 MB/s) Low-speed (1.5 MB/s)