USB 3.0 (SuperSpeed USB)

USB 3.0, also known as SuperSpeed USB, is the next major revision of the Universal Serial Bus (USB).

USB 3.0, also known as SuperSpeed USB, is the next major revision of the Universal Serial Bus (USB), a hardware interface that supports the exchange of data between a host computer and peripherals. Enhancements in the USB 3.0 specification were driven by the need for faster transfer rates and better power efficiency. SuperSpeed USB is ten times faster than USB 2.0 (also called HighSpeed USB) and increases the power output from about 100 milliamps to 900 milliamps.

Unlike USB 2.0, which could only handle traffic in one direction, USB 3.0 has a dual-bus architecture. This allows the bus to read and write at the same time, significantly speeding up the time it takes to transfer data to and from a peripheral device. USB 3.0 also replaces device polling with an interrupt-driven protocol so that idle devices don't have their power drained by the host controller as it looks for active data traffic. All USB 3.0 connections and cables are backwards compatible with USB 2.0 ports, although USB 3.0 cables are slightly thicker than USB 2.0 cables.

Recommended Resources

 

The Universal Serial Bus Revision 3.0 Specification provides the technical details to understand USB 3.0 requirements and design USB 3.0 compatible products.

This was first published in May 2010

Glossary

'USB 3.0 (SuperSpeed USB)' is part of the:

View All Definitions

Dig deeper on Server Hardware for Windows

Pro+

Features

Enjoy the benefits of Pro+ membership, learn more and join.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

File Extensions and File Formats

Powered by:

SearchServerVirtualization

SearchCloudComputing

SearchExchange

SearchSQLServer

SearchWinIT

SearchEnterpriseDesktop

SearchVirtualDesktop

Close