Because products on the market are various, if you buy motherboard, you will find that some motherboards are equipped with the USB 3.0 20pin ports, but seldom of them are working with the USB 3.0 extension, there are still shortcomings of many kinds of motherboards, with 20pin USB 3.0 ports, there are still commonly on the motherboard markets.
At present, devices with USB 3.0 ports are springing out, with the Intel 7 series motherboards which are supportive with the original USB3.0, its speed reaches a new high level, I believe users to buy motherboard are reachable for this in the near future.
USB 3.0 has become one of the hottest configurations of IT industry which can reach to 5Gbps, to times faster than USB2.0, as much as that the USB 3.0 is compatible for USB2.0/USB1.1, it even owns more consumers all over the world. With the development of science and technology, USB3.0 has entered into the original age, such as the new Intel 7 motherboards.
Well, leaving alone the original character the current USB 3.0 connectors need the supportive of third chips, the classical products such as the 20pin USB 3.0 insists on some medium and high-end motherboard shop, for example, the Intel H67 series, P67, X79, of which all contain the reserve 20pin USB 3.0 ports, providing you the convenience to the front extension.