Summit Unit of Fiserv Joins With Array Networks for New Load Balancer Solution

Small to Mid-Sized Credit Unions Benefit With New Price/Performance Options

Corvallis, Ore., April 25, 2005 - Summit Information Systems, a provider of credit union technology solutions and business unit of Fiserv Inc. (Nasdaq: FISV), today announced an agreement with Array Networks, a provider of secure application deployment appliances, to offer Summit Branch Suite customers a new low-cost hardware option that improves the scalability and performance of Branch Suite applications. Currently in use at 10 Summit customer sites, the Array Networks TMX 1100 offers Branch Suite users load balancing, SSL acceleration, compression, caching, and other essential functions into a single, powerful solution.

The TMX 1100 is an entry-level application front end that reduces the load on servers and improves response times. The easy-to-learn GUI interface provides valuable Branch Suite server utilization statistics. Designed to work with up to 10 servers, the TMX 1100 is ideal for Branch Suite customers who have smaller end-user server traffic requirements and want to optimize performance while minimizing their hardware investment. Array Networks will demonstrate the TMX 1100 at the Summit Client Conference, May 16-18 in San Antonio, Texas.

“The Array Networks TMX 1100 delivers the most cost effective load balancing solution that meets the needs of all of our clients at both ends of the user traffic spectrum at an exceptional price and performance,” said Pat Hammack, senior vice president of Product Development at Summit Information Systems. “For our clients that need to scale their use of Branch Suite with a pool of servers, the Array Networks TMX 1100 provides significant cost savings in hardware, maintenance, set up, rack space and power.”

Summit Information Systems, a unit of Fiserv, Inc., is the solutions provider behind the quality service at many of the nation’s credit unions. The Summit Spectrum® core processing solution, delivered via in-house, on-line or through resource management environments, is nationally recognized for superior transaction processing capabilities. Through an intuitive interface, credit unions are provided with advanced, open system capabilities to manage their organization, member data and resources. Summit is located at www.summitsite.com.

Fiserv, Inc. (Nasdaq: FISV) provides information management systems and services to the financial industry, including transaction processing, outsourcing, business process outsourcing and software and systems solutions. The company serves more than 16,000 clients worldwide, including banks, credit unions, financial planners/investment advisers, insurance companies and agents, self-funded employers, leasing companies and mortgage providers. Headquartered in Brookfield, Wis., Fiserv reported $3.4 billion in processing and services revenues for 2004. Fiserv was ranked the largest provider of information technology services to the U.S. financial services industry in the 2004 FinTech 100 survey by the American Banker newspaper and the Financial Insights research firm. Fiserv can be found on the Internet at www.fiserv.com.

About Array Networks

Array Networks is a world leader in secure application acceleration and deployment appliances for global enterprises. Built upon the Array SpeedStackT technology, Array's unified secure content access solutions enable industry-leading performance, integration, scalability and ease of implementation and management. Headquartered in Campbell, Calif., with sales offices in the U.S., Europe, Asia Pacific and Latin America, Array engineers and manufactures its products in the Silicon Valley and sells them through direct and indirect channels across the globe. For more information, visit www.arraynetworks.net or call (408) 378-6800.

Contact: Jennifer Rivera Schwartz Communications For Array Networks (415) 512-0770 This e-mail address is being protected from spambots. You need JavaScript enabled to view it