Qualstar Ships LTO 3 Fibre Channel Equipped Tape Libraries; Capacities Over 211 Terabytes; Individual FC Connection to Each Drive for Maximum Flexibility and Throughput

Business Wire, April 5, 2005

SIMI VALLEY, Calif. -- Qualstar(R) Corporation (NASDAQ:QBAK), a manufacturer of automated tape storage solutions, today announced that it has begun shipping LTO Ultrium(TM) 3 Fibre Channel tape drives in all models of its widely regarded TLS-8000 Series tape libraries. Qualstar's TLS-8000 Series LTO libraries offer users a particularly broad range of capacity, performance and format options. Qualstar TLS-Series LTO tape library architecture provides direct Fiber Channel connections to each LTO 3 drive to deliver peak performance and increased flexibility for SAN-based data protection applications.

The TLS-8000 Series economically and reliably automates LTO tape-based applications, whether backing up a single critical database or as an integral part of an enterprise-wide data management system. Storage capacities range from 4.4 terabytes (native) to more than 211 terabytes using typical data compression techniques. Six TLS models provide a broad range of cost-effective solutions, housing one to eight LTO 3 FC tape drives and up to 264 tapes. All Qualstar LTO 3 Fibre Channel libraries reflect the company's commitment to building Simply Reliable products that deliver solid technical and business benefits.

All TLS-8000 Series libraries support Q-Link(TM), Qualstar's web browser-based remote library manager that enables users to manage, monitor and configure any unit from across the room using their intranet, or from around the world via the Internet. Q-Link enables administrators to configure the library, monitor operations, control access and receive e-mail alerts using a built-in, policy-based event notification system. Q-Link provides significant savings by allowing companies to deploy enterprise-class storage to locations without on-site administration.

"Qualstar libraries equipped with the latest LTO 3 Fibre Channel drives meet our customers' increasing need for fast, high density, and exceptionally cost-effective data protection," said Bob Covey, Qualstar's vice president of marketing. "The new LTO 3 FC drives in our TLS-8000 Series libraries deliver excellent value for new customers, and provide our large installed base with a comprehensive expansion and upgrade path."

Qualstar automated tape storage products are available exclusively through Qualstar's worldwide network of authorized resellers.

About Qualstar Corporation

Qualstar is a manufacturer of automated tape libraries used for backup, archival storage, data protection and disaster recovery. Its products are known throughout the world for their rugged, Simply Reliable design yielding years of trouble-free operation. Qualstar tape libraries are sold, installed and supported worldwide by selected Value Added Resellers, Systems Integrators, Distributors and Original Equipment Manufacturers. Qualstar also designs, manufactures and sells ultra small, high efficiency open-frame switching power supplies under the "N2Power" brand name to OEMs. Qualstar Corporation is publicly traded on the NASDAQ National Market under the symbol QBAK. More information is available at www.qualstar.com or by phone at 805-583-7744.

Forward-Looking Statements

Statements in this press release concerning the future business, operating results and financial condition of the Company are "forward-looking" statements as defined in the Private Securities Litigation Reform Act of 1995. Such statements are based upon management's current expectations and are subject to a number of uncertainties that could cause actual performance and results to differ materially from the results discussed in the forward-looking statements. Factors that could affect the Company's actual results include the Company's ability to increase sales of its tape libraries which incorporate LTO, SAIT and SDLT tape drives, whether the Company's initiatives to maintain and increase sales of its tape libraries based on AIT tape technology will be successful, whether development of the Company's new enterprise-class tape libraries will be completed on time and achieve customer acceptance, rescheduling or cancellation of customer orders, unexpected shortages of critical components, unexpected product design or quality problems, and adverse changes in market demand for tape libraries or Qualstar's products. The Company undertakes no obligation to publicly update any forward-looking statements whether as a result of new information, future events or otherwise. Further information on these and other potential factors that could affect the Company's financial results or condition are included in Qualstar's filings with the Securities and Exchange Commission. In particular, reference is made to the "Risk Factors" section of the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2004, and to the "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of its Form 10-K and its most recent Quarterly Report on Form 10-Q.

Qualstar and the Qualstar logo are registered trademarks of Qualstar Corporation. LTO and Ultrium are registered trademarks of International Business Machines Corporation, Hewlett-Packard and Certance.