QLogic Introduces Comprehensive Support for Intel Extended Memory 64 Technology

Fibre Channel and iSCSI HBAs will Support Intel EM64T

ALISO VIEJO, Calif., Aug. 2, 2004 (PRIMEZONE) -- QLogic Corp. (Nasdaq:QLGC), the company that powers storage area networks (SANs), today announced its entire line of SANblade Fibre Channel and iSCSI host bus adapters will support the new Intel(r) Xeon(tm) processor-based platforms that include Intel(r) Extended Memory 64 Technology (Intel(r) EM64T). Intel EM64T is an enhancement to the Intel IA-32 architecture, which allows the processor to run newly written 64-bit code and access larger amounts of memory. Compatible drivers from QLogic for Fibre Channel and iSCSI host bus adapters will be available in conjunction with the availability of versions of Red Hat, SUSE and Windows operating systems offering Intel EM64T support.

QLogic will provide Intel EM64T compatible device drivers for its SANblade QLA234x and QLA236x line of PCI-X to Fibre Channel HBAs, its SANblade QLE236x line of PCI-Express to Fibre Channel HBAs and its SANblade QLA40xx line of PCI-X to iSCSI HBAs. These products are all supported by QLogic SANsurfer device management software. QLogic drivers are downloadable at www.qlogic.com.

"For the massive installed base of 32-bit processor users, Intel EM64T technology is a welcome addition," said Frank Berry, vice president of marketing, QLogic Corp. "It is the goal of QLogic to make their migration to EM64T easy by providing support for a variety of Fibre Channel and iSCSI host bus adapters."

"Intel EM64T is one of a number of platform innovations that we are delivering to enhance Intel IA-32 architecture's performance and flexibility," said Tom Macdonald, vice president and general manager, Advanced Components Division of Intel Enterprise Platforms Group. "Other enhancements like DDR2, 800 MHz system bus and PCI Express* along with support from HBA leading companies such as QLogic are vital in advancing this popular computing platform."

SANblade(tm) Host Bus Adapters

Award-winning SANblade host bus adapters deliver a powerful combination of affordable price and high performance to meet the needs of a variety of Fibre Channel and iSCSI storage networking applications ranging from desktop to datacenter. Key SANblade features and benefits include:

 -- PCI-X to Fibre Channel, PCI-Express to Fibre Channel and PCI-X to 
    iSCSI host bus adapters for a variety of applications ranging 
    from desktop to datacenter.

 -- Up to 80,000 I/Os per second and up to 800 Mbytes per second 
    throughput for superior performance.

 -- Native support in all major operating systems including 
    Microsoft(r) Windows NT(r) and Windows 2000, Novell(r) NetWare, 
    Linux, and Sun Solaris for easy integration into popular 
    operating Environments

Powered by QLogic

Since 1993, over 50 million QLogic products have shipped inside servers, workstations, RAID subsystems, tape libraries, disk and tape drives. These products were 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, StorageTek and Sun Microsystems, 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 named to the following during fiscal year 2004: (i) Fortune's 100 Fastest Growing Companies list for the fourth consecutive year; (ii) Forbes' Best 200 Small Companies for the fifth consecutive year; and (iii) Business Week's list of 100 Hot Growth Companies. For more information visit www.qlogic.com.

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

Disclaimer -- Forward Looking Statements

This press release contains statements relating to future results of the Company (including certain beliefs and projections regarding business trends) that are "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. The Company wishes to advise readers that these potential risks and uncertainties include, but are not limited to: the volatility of the Company's stock price; fluctuations in operating results; the dependence on the storage area network market; the ability to maintain and gain market or industry acceptance of the Company's products; the dependence on a limited number of customers and fluctuations or cancellations in orders from customers; the ability to compete effectively with other companies; a reduction in sales efforts by current distributors; the dependence on relationships with certain silicon chip suppliers and other subcontractors; the complexity of the Company's products; terrorist activities and resulting military actions; international, economic, regulatory, political and other risks; changes in semiconductor foundry capacity; the ability to maintain or expand upon strategic alliances; the strain on resources caused by rapid growth and expansion; the ability to attract and retain key personnel; and the ability to protect proprietary rights or to satisfactorily resolve any infringement claims.

More detailed information on these and additional factors which could affect the Company's operating and financial results are described in the Company's Forms 10-K, 10-Q and other reports, filed or to be filed with the Securities and Exchange Commission. The Company urges all interested parties to read these reports to gain a better understanding of the many business and other risks that the Company faces. The forward looking statements contained in this press release are made only as of the date hereof, and the Company undertakes no obligation to update or revise these forward-looking statements, whether as a result of new information, future events or otherwise.

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