Black Box Achieves ISO 9001:2008 Certification

The upgrade to the new standard is part of the Company’s ongoing commitment to quality.

PITTSBURGH, PENNSYLVANIA, November 20, 2009 — Black Box Corporation (NASDAQ:BBOX), a leading provider ofvoice services,data infrastructure, andproduct solutions, today announced it has been awarded the ISO 9001:2008 certification for its U.S. operations. This achievement marks the Company’s fifteenth consecutive year of ISO certification.

ISO 9001:2008 is globally regarded as the most comprehensive body of standards on quality management systems and practices. It was established by the International Organization for Standardization (ISO), an organization of national standards institutes of 162 countries and the foremost authority on quality standards. The ISO 9001:2008 standard clarifies existing requirements of the previous standard, ISO 9001:2000.

“We’re proud of our achievement with this ISO certification. It represents our dedication to continuous improvement and quality in every product and service we provide,” said Louis A. Gorga, director of operations for Black Box. “For us, quality isn’t just a buzzword; it is the driving principle of everything we do.”

In addition to its U.S. operations, Black Box’s Canadian, European, Latin American, and Pacific Rim offices are ISO 9001 certified, giving customers the assurance of consistent quality around the world.

Achievement of ISO 9001:2008 is independently audited and certified. Black Box’s certification was issued by Intertek Testing Services NA, Inc., an international leader in systems certification, and the testing, inspection, and certification of products and commodities. Intertek has an extensive network of more than 1,000 offices and laboratories in 100 countries.

About Black Box
Black Box is the world’s largest technical services company dedicated to designing, building and maintaining today’s complicated data and voice infrastructure systems. Black Box services more than 175,000 clients in 141 countries with 194 offices throughout the world. To learn more, visit the Black Box Web site athttp://www.blackbox.com.

Black Box® and the Double Diamond logo are registered trademarks of BB Technologies, Inc. Any third-party trademarks appearing in this press release are acknowledged to be the property of their respective owners.

Contact: Black Box Corporation
Gary Doyle
Director – Investor Relations
Phone: 724-873-6788
E-mail:investors@blackbox.com