USB 3.0 TECHNOLOGY

Technology Universal Serial Bus (USB) has become a standard variety of devices connected to the computer, ranging from the hard drive, Mouse, Printer, Camera, and others. USB 1.0 is actually already began to be introduced since 1996, but became popular when it appeared the USB 2.0 in the early 2001's (with speeds up to 40x USB 1.0 - 480 Mbits / s or about 57 MBytes / s). Later this year 2010 USB 3.0 started to be introduced, how his ability?

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 USB 2.0 is known as High-Speed USB, USB 3.0, while at term it with SuperSpeed, because its speed can be said Super. Here's more detailed explanation.

 USB 3.0 SpecificationSome changes have been implemented in the USB 3.0 along with the increased use of external devices and the need for higher speeds. Here's a brief explanation of the technology.Transfer RateUSB 3.0 data transfer speeds of about 3200 Mbits / s (3.2 GBits / s or 400 MBytes / s), and in theory can achieve the 4.8 Gbit / s. This speed is 6 to 10 times faster than USB 2.0 maximum speed.Data TransferUSB 3.0 data transfer technology introduces two-way (full duplex), so it can read and write data simultaneously (simultaneously). USB 2.0 and earlier do not support this bi-directional technology.PowerVoltage reduced from 4.4 V to 4V, then flow is also improved (to 150mA), so in addition to more energy efficient, a USB 3.0 port can be used 4-6 devices and increased recharging.Power ManagementPower management is better than USB 2.0, thus supporting the idle, sleep and suspend (Wikipedia)Physical FormEdge USB 3.0 will be the same with USB 2.0 (standard), but the cable in it will be more, there is an additional 4 cable channels than USB 2.0 (total there are 9 channels cable).
What about USB 2.0 User?Currently the majority of electronic devices still use the USB 2.0 technology, then what if later on have started to change with USB 3.0?. This is not to worry about, USB 3.0 is also considering the previous technology.
CompatibilityUSB 3.0 compatible with USB 2.0, so USB 2.0 devices will still be used in USB 3.0 port and will work with USB 2.0 standard speed. But not vice versa, a USB 3.0 device can not be installed on a USB 2.0 port.Operating System Support
Windows Vista, Windows 7 and Linux already supports USB 3.0, and Mac will soon follow. But for Windows XP until now there is no certainty whether there will be an update to this new interface.
DeficiencyBesides having many advantages above, the USB 3.0 interface also has several drawbacks, including the following:
Cable Length. USB 3.0 Maximum cable length is reduced to 3 feet (USB 2.0 maximum 5 meters). Although this can be overcome by adding a USB Hub.Speed Limit, not all devices can use a USB 3.0 full speed, such as magnetic hard drives are limited to pieces of the disk rotation speed.
Already have an idea of the USB 3.0 technology? If you want more detailed and complete information, please read the reviews of USB 3.0 in Wikipedia or in Computerworld.