USB is now the most common interface for connecting peripheral devices to the computer. Via USB you can connect printers, scanners, mouse, keyboard, external drives. In place of the usual USB 2.0 interface coming soon new and improved the USB 3.0 interface.

The abbreviation USB stands for “universal serial bus”. This interface is used to connect low-speed and medium-speed peripherals. In 1996 was released the specification USB 1.0. She supported a data transfer rate up to 12 Mbit/s high-speed interface mode USB 2.0. introduced in 2000, supports data transfer up to 480 Mbps. Now this interface is most common and is used in most peripheral devices. But to replace him is coming soon the new high speed interface USB 3.0.

The final specification for USB 3.0 was introduced in 2008, but he still has not entered into mass use. What are the main features of the USB 3.0 interface{!LANG-1dcf2efaf0f8d8df86dd843cb3862611!}

The necessity of introduction of USB 3.0 interface due to the fact that many modern devices require higher data transfer speed. Besides, they have enough power, which can provide USB 2.0. USB 3.0 interface supports more than high speed data transfer up to 4.8 Gbit/s.{!LANG-1f26c5888c47157f67fbb1b706ebb27c!}

Controllers and connectors USB 3.0 USB 2.0 compatible, both physically and functionally. USB 3.0 plug includes contacts of the USB 2.0 standard, but in the back of the connector there is another contact number with five contacts. Connector cable will allow at a glance to determine the version of the USB standard. However, such an arrangement of contacts means that the USB 3.0 plug to be inserted into the appropriate port “to stop.” If you insert the plug into the port is not full, additional contact number will not be used, so the data transfer rate will match the USB 2.0 interface.

{!LANG-a3599decf2ac35c994ca83f96b91e256!}compatibility devices with USB 2.0 and USB 3.0.{!LANG-2d39cf01779d69450559203aff61345f!}

Also, USB 3.0 was increased amperage{!LANG-23e2bdbcc07b2bf991813efdc88084da!}

{!LANG-e9ad44e059ba7dd482420115461bef56!}USB hubs (hubs) with support for USB 3.0. which allow you to connect multiple devices to a single USB controller. Hubs that support USB 3.0 will be more difficult as they have to simultaneously support USB 2.0. Therefore, it is likely that the first generation of such hubs will be expensive.

However, the USB 3.0 interface more not supported by all operating systems and motherboards.{!LANG-987329a565ce681f11f348bfc6758d80!}

A new Linux kernel. according to the developers, already supports USB 3.0. But Windows 7{!LANG-78aa8e53d4901161afd05809400200d9!}