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Frenquently Asked Questions:

1.How fast is Hi-Speed USB 2.0?
Hi-Speed USB 2.0 operates at 480 Mbps.


2.When was the final USB 2.0 specification released?
The spec was released at Microsoft's Windows Hardware Engineering Conference* (WinHEC) in April 2000.

3.Who developed USB 2.0?
USB 2.0 was developed by seven industry-leading companies, collectively named the USB 2.0 Promoter Group: Compaq, Hewlett-Packard, Intel, Lucent, Microsoft, NEC, and Philips.

4.Is there a difference between Hi-Speed USB and USB 2.0? Which is the correct nomenclature?
There is a difference in Hi-Speed USB and USB 2.0. The difference is that the USB 2.0 specification covers all three speeds 480 Mbps, 12 Mbps, and 1.5 Mbps. "Hi-Speed USB" refers to just the 480 Mbps portion of the USB 2.0 specification. We now use the term "USB" to refer to the 12Mbps and 1.5Mbps speeds.

5.What is USB On-the-Go?
USB On-the-Go addresses the growing need for mobile interconnectivity by allowing a USB peripheral to communicate directly with another USB peripheral.

6.When did Intel release its first chipsets with the integrated Hi-Speed USB 2.0 controller?
Intel released the 845E, 845G, and 845GL chipsets in May 2002, all of which integrated Hi-Speed USB 2.0 in the I/O controller hub (ICH4).

7.What is the "Hi-Speed logo" and what does it represent?
The "Hi-Speed logo" is a trademark-protected logo for use by qualified licensees. The logo is a guarantee to the consumer that the product has undergone compliance testing for quality.

8.Where can I get more info on Hi-Speed USB 2.0 in general?
The USB-IF web site is the definitive source for all information pertaining to USB 2.0.

9.How many devices can be connected to one host PC?
Each host controller can support up to 127 devices. A host PC may contain multiple host controllers.
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