QLogic To Announce Fiscal First Quarter 2004 Results; Teleconference Scheduled For Wednesday, July 16, 2003.

Business Editors/High-Tech Writers

ALISO VIEJO, Calif.--(BUSINESS WIRE)--July 8, 2003

QLogic Corp. (Nasdaq:QLGC), the company that simplifies storage networking, plans to announce its fiscal first quarter 2004 financial results after the close of the market on Wednesday, July 16, 2003.

Following the press release, QLogic will host a conference call at 2:30 p.m. Pacific Time (5:30 p.m. Eastern Time). H.K. Desai, chairman of the board, chief executive officer and president and Frank Calderoni, senior vice president and chief financial officer, will conduct the conference call. The call is being webcast live via the Internet at www.qlogic.com or via CCBN. Phone access is available at (913) 981-5517, passcode: 356844.

A replay of the conference call will be available via webcast at www.qlogic.com or audio at (719) 457-0820, passcode: 356844. The webcast will be available for 90 days. The audio replay will be available through July 31, 2003.

Powered by QLogic

Over 45 million QLogic products have shipped inside servers, workstations, RAID subsystems, tape libraries, disk and tape drives, delivered to small, medium and large enterprises around the world. Powering solutions from leading companies like Cisco, Dell, EMC, Fujitsu, Hitachi, HP, IBM, Network Appliance, Quantum, Sony, StorageTek and Sun, the broad line of QLogic controller chips, host bus adapters, network switches and management software move data from storage devices through the network fabric to servers. A member of the S&P 500 and Nasdaq 100, QLogic was recently named to Forbes' Best 200 Small Companies for the fourth consecutive year and was named to Fortune's 100 Fastest Growing Companies list for the third consecutive year. For more information visit www.qlogic.com.

Note: All QLogic-issued press releases appear on the company's web site (www.qlogic.com). Any announcement that does not appear on the QLogic web site has not been issued by QLogic.

Disclaimer -- Forward-Looking Statements

With the exception of historical information, the statements set forth above include forward-looking statements as defined within the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those projected or implied in the forward-looking statements. QLogic wishes to advise readers that these potential risks and uncertainties relate to, but are not limited to, in no particular order: the introduction of new and changing technologies in our industry and customer acceptance of those technologies; a change in semiconductor foundry capacity or conditions; fluctuations in the growth of I/O markets; fluctuations or cancellations in orders from OEM customers; QLogic's ability to compete effectively with other companies; cancellation of OEM products associated with design wins; and fluctuations in our operating results and our stock price.

More detailed information on these and additional factors which could affect QLogic's operating and financial results are described in QLogic's Forms 10-Q, 10-K and other reports, filed or to be filed with the Securities and Exchange Commission. QLogic urges all interested parties to read these reports to gain a better understanding of the many business and other risks that QLogic faces. Additionally, QLogic undertakes no obligation to publicly release the results of any revisions to these forward-looking statements, which may be made to reflect events or circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events.

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