USB 2.0 vs USB 3.0 - the differences

USB 3.0 is the latest USB Standard and was released in November 2008. What are the differences and advantages he has in comparison to its predecessor, USB 2.0 from the year 2000, experience points in the following Comparison.

• Speed: USB 2.0 up to 480 MBit/s, while USB 3.0 transfers up to 10 Times faster with a maximum of 4.8 GBit/s.
• USB 2.0 is half duplex, while USB 3.0 operates full-duplex. This means that in the case of USB 2.0, the data can only be in one direction at a time is transferred. In the case of USB 3.0, data can be in both directions simultaneously transmitted.
• The maximum current strength with USB 3.0 from 500 mA to 900 mA raised. As a result, the external power supply is omitted in the case of 2.5-inch hard drives.
• Price: While a 16 GB flash drive with USB 2.0 for about 6 euros, the cost of a comparable USB 3.0 drive with about 8 Euro, only 2 Euro more.
• Color: USB 3.0 identified by the blue Connector. USB 2.0 was still completely black.
• Maximum cable length: USB 3.0 limits the cable length to a maximum of 3 meters. USB 2.0 cable can be up to 5 meters long.
• USB 3.0 is fully downwards compatible to USB 2.0. That is, even a USB 2.0 drive can be connected to a USB 3.0 Port and a USB 3.0 Stick works on USB 2.0 Port. On a 2.0 Port, the data will not be transferred with a USB 3.0 Stick is faster. A USB 2.0-Stick benefits to a USB 3.0 Port and slightly faster transfer rates.