Exhibit 99.1

DATALINK REPORTS 2011 SECOND QUARTER AND SIX MONTH OPERATING RESULTS

Record Second Quarter and Six Month Revenue Up 26% and 31% Year-Over-Year, Respectively

CHANHASSEN, Minn., July 20, 2011 — Datalink (Nasdaq: DTLK), a leading provider of data center infrastructure and services, today reported results for its second quarter and six month period that ended June 30, 2011.  Revenues for the quarter ended June 30, 2011, increased 26% to $89.5 million compared to $70.9 million for the prior-year period.  Revenues for six months ended June 30, 2011, increased 31% to $175.2 million compared to $133.4 million for the six months ended June 30, 2010.

GAAP Results

On a GAAP basis, the company reported net earnings of $2.7 million or $0.16 per diluted share for the second quarter ended June 30, 2011.  This compares to break-even in the second quarter of 2010.  For the six months ended June 30, 2011, the company reported net earnings of $4.4 million or $0.29 per diluted share, compared to a net loss of $886,000, or $0.07 per diluted share, for the six months ended June 30, 2010.

Non-GAAP Results

Non-GAAP net earnings for the second quarter of 2011 were $3.3 million, or $0.19 per diluted share, compared to non-GAAP net earnings of $748,000, or $0.06 per diluted share, in the second quarter of 2010.  For the six months ended June 30, 2011, the company reported non-GAAP net earnings of $5.5 million, or $0.36 per diluted share, compared to net earnings of $850,000, or $0.07 per diluted share, for the six months ended June 30, 2010.  A detailed reconciliation between GAAP and non-GAAP information is contained in the tables included herein.

Paul Lidsky, Datalink’s president and CEO, commented, “The second quarter of 2011 was another record quarter for Datalink.  Our momentum from a record 2010 and record first quarter of 2011 has continued.  We reported record second quarter and six month revenues and earnings, which exceeded the investor guidance given at the beginning of the quarter.  This represents our ninth consecutive quarter of non-GAAP net earnings.   Other significant accomplishments for the second quarter of 2011 include:

·                  We continue to see an increase in multi-million dollar accounts with Global 500 companies. In the first six months of 2011 we had 36 customers each purchase over $1

million of product and services from us as compared to 23 customers in the first six months of 2010.  In addition, we acquired 77 new customers in the second quarter of 2011.

·                  Our customer intimacy is a cornerstone to our go-to-market strategy to deliver premier services to our customers, as demonstrated by our 21% increase in services to a record $33.0 million in the second quarter.  This represents our second quarter in a row with twenty plus percent service revenue growth.

·                  We exited the quarter with a strong balance sheet.  Our working capital increased $3.6 million to $46.2 million and we have no debt.

·                  Our company’s growth was also spotlighted by our recognition from CRN Everything Channel.  Our VAR500 ranking was elevated to 72, compared to 195 in 2010, and furthermore we were awarded the “Top Services Sales Growth” at the VAR500 executive conference and profiled as one of the “Titans of Transformation” editorial follow up to the event.

·                  We were one of the first partners worldwide to achieve the Advanced Data Center Architecture (DCA) Specialization from Cisco, recognized for continuing to make significant investment to ensure our customers can make their data centers more efficient, agile and resilient.  Our diligence has not waivered to provide our customers with the most technically adept professionals in the market”.

Outlook

Based on the company’s backlog and sales pipeline we expect revenues to be between $85 million and $90 million for the third quarter of 2011 and we expect third quarter 2011 net earnings to be between $0.12 and $0.16 per diluted share on a GAAP basis, and net earnings to be between $0.15 and $0.19 per diluted share on a non-GAAP basis.  This compares to revenues of $69.2 million in the third quarter of 2010.  GAAP net earnings per share in the third quarter of 2010 were $0.06 and non-GAAP net earnings per share were $0.11 per share.

“Our third quarter guidance represents a 23% to 30% increase in revenues and a 36% to 72% increase in non-GAAP net earnings per share over the same period last year” said Lidsky.  “I believe that our first half results and third quarter forecast are both indicative of the steadily increasing demand for unified data center infrastructure and that our customers and prospects continue to invest in this area.  Our investments in expanded product and services portfolio are allowing us to take full advantage of this growing market,” he added.

Non-GAAP earnings per share exclude the effect of acquisition accounting adjustments from the Incentra acquisition to deferred revenue and costs, integration and transaction costs related to acquisitions, stock-based compensation expense, amortization of intangible assets, and the related effects on income taxes. The company estimates this total effect will be approximately $0.03 per diluted share for the third quarter of 2011.

Effect of Accounting Change

Effective January 1, 2011, the company was required to adopt a new revenue recognition accounting standard.  This new standard, which applies to all resellers of computer hardware,

requires that the company now recognize product revenues upon shipment versus upon installation under its old revenue recognition method.  Accordingly the company’s first quarter and six months of 2011 results reflects this new revenue recognition policy.  The company’s revenue for the first six months of 2011 includes $8.3 million of revenues that were recognized in the first six months of 2011 that would have been recognized in the fourth quarter of 2010 if the company had been recognizing revenue upon shipment in 2010.

Conference Call and Webcast Today

Datalink will hold a conference call at 4:00 p.m. central time, during which Datalink’s president and chief executive officer, Paul Lidsky, and vice president of finance and chief financial officer, Greg Barnum, will discuss company results and provide a business overview. Participants can access the conference call by dialing (877) 277-9804. Participants will be asked to identify the Datalink conference call and provide the designated identification number (80915432). A live Webcast of the conference call can be heard via Datalink’s website at www.datalink.com.

About Datalink

A complete data center solutions and services provider for Fortune 500 and mid-tier enterprises, Datalink transforms data centers so they become more efficient, manageable and responsive to changing business needs. Datalink helps leverage and protect storage, server, and network investments with a focus on long-term value, offering a full lifecycle of services, from consulting and design to implementation, management and support. Datalink solutions span virtualization and consolidation, data storage and protection, advanced networks, and business continuity. Each delivers measurable performance gains and maximizes the business value of IT. For more information, call 800.448.6314 or visit www.datalink.com.

The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for certain forward-looking statements.  This press release contains forward-looking statements, including our internal projections of anticipated 2011 results, which reflect our views regarding future events and financial performance.  These forward-looking statements are subject to certain risks and uncertainties, including those identified below, which could cause actual results to differ materially from historical results or those anticipated.  The words “aim, “believe,” “expect,” “anticipate,” “intend,” “estimate”, “should” and other expressions which indicate future events and trends identify forward-looking statements.  Actual future results and trends may differ materially from historical results or those anticipated depending upon a variety of factors, including, but not limited to:  the level of continuing demand for storage, including the effects of current economic and credit conditions; competition and pricing pressures and timing of our installations that may adversely affect our revenues and profits; fixed employment costs that may impact profitability if we suffer revenue shortfalls; revenue recognition policies that may unpredictably defer reporting of our revenues; our ability to hire and retain key technical and sales personnel; our dependence on key suppliers; our ability to adapt to rapid technological change; risks associated with integrating possible future acquisitions; fluctuations in our quarterly operating results; future changes in applicable accounting rules; and volatility in our stock price. Further, our revenues for any particular quarter are not necessarily reflected by our backlog of contracted orders, which also may fluctuate unpredictably.  We cannot assure that we can grow or maintain our revenue and backlog from current levels.

Non-GAAP Details

Non-GAAP financial measures exclude the impact from acquisition accounting adjustments to deferred revenue and costs, stock-based compensation expense, amortization of acquisition intangible assets, integration and transaction costs related to acquisitions and the related effects on income taxes.  These non-GAAP measures are not in accordance with, or an alternative for measures prepared in accordance with, GAAP and may be different from non-GAAP measures used by other companies. In addition, these non-GAAP measures are not based on any comprehensive set of accounting rules or principles. We believe that non-GAAP measures have limitations in that they do not reflect all of the amounts associated with our results of operations as determined in accordance with GAAP and that these measures should only be used to evaluate our results of operations in conjunction with the corresponding GAAP measures.

These non-GAAP financial measures facilitate management’s internal comparisons to our historical operating results and comparisons to competitors’ operating results. We include these non-GAAP financial measures in our earnings announcement because we believe they are useful to investors in allowing for greater transparency with respect to supplemental information used by management in its financial and operational decision making, such as employee compensation planning. We believe that the presentation of these non-GAAP measures when shown in conjunction with the corresponding GAAP measures provides useful information to investors and management regarding financial and business trends relating to our financial condition and results of operations.

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DATALINK CORPORATION

STATEMENTS OF OPERATIONS

(In thousands, except per share data)

(Unaudited)

DATALINK CORPORATION

BALANCE SHEETS

(In thousands, except share data)

DATALINK CORPORATION

RECONCILIATION  BETWEEN GAAP AND NON-GAAP NET INCOME

(In thousands, except per share data)

(Unaudited)

DATALINK CORPORATION

STATEMENT OF CASH FLOWS

(In thousands)

(Unaudited)