Aliso Viejo, Calif., July 16, 2007 — QLogic Corp.
(Nasdaq:QLGC), the leader in Fibre Channel host bus adapters (HBAs),
stackable switches and blade server switches, today announced that its
enterprise class SANbox(r) 9000 Series Fibre Channel director switches
are now available from Hitachi Data Systems, a wholly owned subsidiary
of Hitachi, Ltd., and authorized Hitachi Data Systems
resellers. The SANbox 9000 Series is a new class of director switch
that takes less rack space, power and cooling than any other director
switch available today, all at a fraction of the cost.

With the addition of the SANbox 9000 director, which has completed
rigorous qualification testing with a suite of Hitachi Data Systems
enterprise and mid-range storage systems, Hitachi Data Systems now
offers the complete QLogic(r) Fibre Channel switch portfolio which
includes the SANbox 1400 and 5600 Series.

"The Hitachi Data Systems tradition of empowering its customers with
the ability to implement best-of-breed storage networking solutions
continues with the availability of SANbox 9000 director switches to its
global base of enterprise customers," said Jesse Parker, vice president
and general manager, QLogic Network Solutions Group. "QLogic has raised
the bar for director switches with the SANbox 9000, delivering
unsurpassed ease-of-use and greater price-per-port value than any
competitive offering."

"Our enterprise customers value reliability, performance and support
for their heterogeneous storage network environments," said Steve
TenBarge, vice president, Global Product Marketing, Hitachi Data
Systems. "The SANbox 9000 Series delivers director level performance in
a compact form factor that requires very little power consumption —
adding to our lineup of eco-friendly storage solutions."

Finally, there´s a new class of core switch that represents a sane
alternative to quarter million dollar director switches. The SANbox
9000 Series is Designed to the Core for cost-sensitive,
business-critical, open system environments that require ultra high
density, blazing performance and intelligent switching for their data
center core. The SANbox 9000 architecture represents a number of
industry firsts: a 4U modular chassis for a smaller footprint and
cost-effective scalability, customer replaceable units (CRUs) to
eliminate costly service calls, a 10Gb core-to-edge "backbone" enabling
seamless inter-switch SAN performance scaling and a comprehensive set
of core switch software management tools included as standard.

About QLogic

QLogic is a leading supplier of high-performance storage networking
solutions, producing the controller chips, host adapters and fabric
switches that are the backbone of storage networks for most Global 2000
corporations. The company delivers a broad and diverse portfolio of
products that includes Fibre Channel HBAs, blade server embedded Fibre
Channel switches, Fibre Channel stackable switches, iSCSI HBAs, iSCSI
routers and storage services platforms for enabling advanced storage
management applications. The company is also a leading supplier of
InfiniBand switches and InfiniBand host channel adapters for the
emerging High Performance Computing Cluster (HPCC) market. QLogic
products are delivered to small-to-medium businesses and large
enterprises around the world via its channel partner community. QLogic
products are also powering solutions from leading companies like Cisco,
Dell, EMC, Hitachi Data Systems, HP, IBM, NEC, Network Appliance and
Sun Microsystems. QLogic is a member of the S&P 500 Index.

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.

QLogic, the QLogic logo and SANbox are registered trademarks of QLogic
Corporation. Other trademarks and registered trademarks are the
property of the companies with which they are associated.

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