Adaptec MaxIQ SSD Caching Solution With Microsoft Technology Demonstrates Dramatic I/O Acceleration

SSD & Storage Controller Combo Delivers 3.2 Times Performance Increase in an OLTP Workload Simulating a Demanding Brokerage Firm

MILPITAS, California, March 25, 2010 - Adaptec, Inc. (Nasdaq: ADPT), a global leader in data centre hardware and
software storage solutions, today revealed benchmarking results for its
MaxIQ(TM) SSD Cache Performance Solution. Integrating an advanced solid state
storage control technology developed by Microsoft Corp., the solution is
licensed and has been further enhanced by Adaptec. Using a simulation of a
dynamic brokerage application environment, Adaptec consistently demonstrated
a 3.2 times increase in system I/O (input/output) performance over the best
results of a similar system without SSD caching. An increase in performance
of 3.2 times can translate into a savings in capital and operating costs of
up to 70 percent.

"These benchmark tests provide data centre managers working with
high-traffic transactional workloads with quantifiable evidence that storage
controllers utilising SSD caching in SSD/HDD High-Performance Hybrid Arrays
can dramatically increase system performance," said Jon Flower, vice
president of Advanced Technology, Adaptec. "Accelerating throughput,
particularly during peak transactional periods, along with reducing capital
and operating costs, minimising system footprint, and consuming less energy
are critical issues for data centre managers today. Adaptec MaxIQ SSD Caching
solutions were designed to address all of these issues."

This application is a database application benchmark which models a
brokerage firm with customers who generate transactions related to trades,
account enquiries, and market research. The brokerage firm in turn interacts
with financial markets to execute orders on behalf of the customers and
updates relevant account information. Simulating a 50,000 user environment,
Adaptec MaxIQ consistently achieved system I/O performance that was 3.2 times
greater than the best results for a hard disk drive-only system without SSD
caching.

"When our datacentre team came up with some innovative ideas around using
solid state devices as read caching devices, we determined it made good sense
to license these advances to Adaptec because Microsoft itself doesn't sell
these types of products," said David Kaefer, general manager of Intellectual
Property Licensing at Microsoft. "By collaborating through licensing, Adaptec
customers benefit from a product that delivers impressive performance and
cost savings over alternatives in the market."

Adaptec's MaxIQ SSD Cache Performance Solution creates High-Performance
Hybrid Arrays (HPHAs) by pairing tuned 32GB Intel(R) X25-E Extreme
Solid-State Drives, used as high-performance cache, with Adaptec's MaxIQ SSD
caching software and standard hard disk drives. The hybrid SSD/HDD solution
provides I/O intensive data centre and cloud computing customers with maximum
I/O performance, up to 70 percent savings in capital and operating costs and
cost-effective scalability, all without disrupting existing operations. More
information about Adaptec MaxIQ can be found at www.adaptec.com/MaxIQ.

About Adaptec

Adaptec, Inc. (NASDAQ: ADPT) provides innovative data centre I/O
solutions that protect, accelerate, optimise, and condition data in today's
most demanding data centre environments. Adaptec products are used in IT
environments ranging from traditional enterprise environments to fast
growing, on-demand cloud computing data centres. The company's products
enable data centre managers, channel partners and OEMs to deploy
best-in-class storage solutions to meet their customers' evolving IT and
business requirements. Around the world, leading corporations, government
organisations, and medium and small businesses trust Adaptec technology. More
information is available at www.adaptec.com, on its blog,
storageadvisors.adaptec.com, and at adaptec.com/facebook and
twitter.com/Adaptec_Inc.

Adaptec is a registered trademark and Unified Serial is a trademark in
the United States and other countries. Other company names are trademarks or
registered trademarks of their respective owners. Adaptec disclaims any and
all rights in these trademarks.

    Contact:
    Sara Lee
    Walt & Company for Adaptec
    +1-408-369-7200 x2980
    slee@walt.com

Sara Lee of Walt & Company, +1-408-369-7200, ext. 2980, slee at walt.com, for Adaptec