Black Box

PITTSBURGH, PENNSYLVANIA, December 20, 2011 — Black Box Corporation (NASDAQ:BBOX), a leading communications system integrator dedicated to designing, sourcing, implementing and maintaining today’s complex communications solutions, today announced it has been re-certified to the ISO 9001:2008 Standard for its U.S. Operations. This achievement marks the Company’s eighteenth 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 162 national standards institutes and the foremost authority on quality standards. Certification is dependent upon a quality management system that includes management responsibility, resource management, product realization, measurement, analysis and improvement. “We’re extremely proud of this ISO re-certification. It represents our continued dedication to the systematic approach of managing our organization’s processes to exceed customer expectations," said Louis A. Gorga, director of operations for Black Box. “Quality practices are entrenched within everything we do.” In addition, Black Box offices in Canada, Europe, Latin America and the Pacific Rim are ISO 9001 certified, which provides consistent quality around the world. ISO 9001:2008 re-certification 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 a leading communications system integrator dedicated to designing, sourcing, implementing and maintaining today’s complex communications solutions. Black Box services more than 175,000 clients in 141 countries with 198 offices throughout the world. To learn more, visit the Black Box Web site at http://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