Needham 11 th Annual Growth Conference January 6, 2009 NASDAQ: BBOX

Company Confidential 2 Black Box Network Services Forward-Looking Statements - Any forward-looking statements contained in this presentation are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and speak only as of the date of this presentation. You can identify these forward-looking statements by the fact that they use words such as "should," "anticipate," "estimate," "approximate," "expect," "target," "may," "will," "project," "intend," "plan," "believe" and other words of similar meaning and expression in connection with any discussion of future operating or financial performance. Forward-looking statements are inherently subject to a variety of risks and uncertainties that could cause actual results to differ materially from those projected. Risk factors are included in our Annual Report on Form 10-K for the fiscal year ended March 31, 2008 and our other filings with the Securities and Exchange Commission (the “SEC”). We can give no assurance that any goal, plan or target set forth in forward-looking statements can be achieved and readers are cautioned not to place undue reliance on such statements, which speak only as of the date made. We undertake no obligation to release publicly any revisions to forward-looking statements as a result of future events or developments. GAAP Reconciliation -This presentation also includes, as a supplement to United States Generally Accepted Accounting Principles (“GAAP”), certain non-GAAP financial measures. These non-GAAP financial measures exclude the impact of certain items and, therefore, have not been calculated in accordance with GAAP. Pursuant to the requirements of the SEC’s Regulation G, we provide in our SEC filings additional information regarding these non-GAAP financial measures, including a reconciliation of them to their most comparable GAAP financial measures, management’s explanations regarding the use and usefulness of non-GAAP financial measures and the limitations associated with the use of non-GAAP financial measures. The Company's non-GAAP financial measures are not meant to be considered in isolation or as a substitute for comparable GAAP financial measurements, and should be read only in conjunction with the Company's consolidated financial statements prepared in accordance with GAAP.

Terry Blakemore President and CEO

Company Confidential 4 Black Box Network Services » The largest independent provider of major communications and infrastructure technologies Hotline Products Data Infrastructure Voice Communications

Company Confidential 5 A Global Company 191 offices in 141 countries » Serving more than 70% of the Fortune 100

Company Confidential 6 Key Objectives Deliver the highest quality technical support services and products to our clients around the world. Achieve operating margin and cash flow targets. Supplement organic growth with high quality M&A activities.

Company Confidential 7 Capabilities $1 billion annual revenue Voice Communications 58% Data Infrastructure 19% Hotline Products 23% Source: Company 2008 Form 10-K.

Company Confidential 8 Capabilities Remote MonitoringNetwork Security Voice over IPUnified CommunicationsTraditional Telephony Voice Communications Solutions: 58% of revenue

Company Confidential 9 Strategic Advantage: Our Communications Portfolio & Partners 25-year relationship 2M ports on maintenance 289 certifications Coverage: U.S., Canada, U.S. Federal Government 25-year relationship 2M ports on maintenance 289 certifications Coverage: U.S., Canada, U.S. Federal Government Relationships around the globe 325,000 ports on maintenance 133 certifications Coverage: U.S. Relationships around the globe 325,000 ports on maintenance 133 certifications Coverage: U.S. No. 1 U.S. channel partner 25-year relationship 1M+ ports on maintenance Over 1,000 certifications Coverage: U.S. No. 1 U.S. channel partner 25-year relationship 1M+ ports on maintenance Over 1,000 certifications Coverage: U.S. Leader in Pure IP Telephony Added to portfolio in ,500 ports on maintenance Coverage: U.S., Canada, UK and Australia Leader in Pure IP Telephony Added to portfolio in ,500 ports on maintenance Coverage: U.S., Canada, UK and Australia No. 1 channel partner in North America 700,000+ ports on maintenance 167 certifications Coverage: U.S., Canada No. 1 channel partner in North America 700,000+ ports on maintenance 167 certifications Coverage: U.S., Canada

Company Confidential 10 Capabilities Networking Data Centers Data Networking Structured Cabling Digital Signage, CATV & Video Data Infrastructure Services: 19% of revenue

Company Confidential 11 Capabilities Custom Solutions Hotline Products: 23% of revenue CablesCabinets & RacksKVMRouters, Switches

Company Confidential 12 Start-to-Finish Services Entrance Facility Equipment Room Telecommunications Room Backbone Desktop Horizontal Cabling » From the cable entry point to the desktop » Inside-the-building experts

Company Confidential 13 Infrastructure Services Worldwide market size Structured Cabling Services$8B Telephony Services$12B Total Infrastructure Services$20B

Company Confidential 14 A Recognized Industry Leader Awards & Accolades » One of North America’s Largest Solution Providers » A Top Innovator in Business Technology » ISO 9001:2000 Quality Assurance Global Certification

Mike McAndrew Chief Financial Officer

Company Confidential 16 Well-Diversified Revenues $1billion in annual revenue Revenues by Industry Revenues by Size of Client Revenues by Geography Large 45% Medium 20% Small 35% Manufacturing 23% Government 16% Banking 11% Business Services 11% Retail 9% Utilities 7% Distributors 6% Education 6% Other 4% Social Services 8% North America 82% Europe 14% Other 4% Source: Company 2008 Annual Report.

Company Confidential 17 Solid Sustainable Margins * See attached reconciliation Source: Derived from Company data and Company’s 2006 and 2008 Forms 10-K and Q Form 10Q.

Company Confidential 18 GAAP/Non-GAAP Reconciliation Source: Derived from Company data and Company’s 2006 and 2008 Forms 10-K and Q Form 10Q.

Company Confidential 19 Consistent Positive Cash Flow Source: Derived from Company data and Company’s 2006 and 2008 Forms 10-K and Q Form 10Q.

Company Confidential 20 Balance Sheet Statistics months 2009 DSO Days Inventory Turns Capex (M)$3.5$4.1$5.9$3.2$1.5 Capex as % of Rev.0.6% 0.3% Headcount3,3713,2954,5814,3134,445 Debt / Equity.3 to 1.2 to 1.4 to 1.3 to 1 Source: Derived from Company data and Company’s 2006 and 2008 Forms 10-K and Q Form 10Q.

Company Confidential 21 Black Box Network Services (BBOX) » Well-Diversified Revenues » Solid, Sustainable Margins » Consistent, Positive Cash Flow

NASDAQ: BBOX