10 things you should know about USB 2.0 and 3.0
USB 3.0 is here! After long delays and much touted promotion of the new specification, USB 3.0 is now finally available or soon will be on some new ASUS and Gigabyte motherboards. ASUS has also announced an add-in PCIe x4 card with USB 3.0 support, though it is compatible only with its P55 series of motherboards after a BIOS upgrade. Dane-Elec has announced a family of external SuperSpeed SSD drives and add-in card, but you will have to pay a hefty premium for the extra performance.
There is some bad news, though: Intel has announced that it will not include USB 3.0 in its chipsets until 2011. AMD may not support USB 3.0 until 2011 either. That means that USB 3.0 is not likely to go mainstream until then.
Current versions of Windows do not support USB 3.0, but support is expected for Windows Vista and Windows 7 at a later date via an update or service pack. The Linux kernel supports USB 3.0 as of version 2.6.31.
Now that USB has finally arrived, albeit barely, this is a good time to compare the previous USB specifications with USB 3.0.
Note: I have taken great care to verify the accuracy of this information, but USB is complex. If you find an error in the documentation or have additional information, please post it in the forum. The examples in this document all use Windows 7.
Complete articles :techrepublic.com
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