Exhibit 99.1

Emulex Exceeds the High End of Both Revenue and Earnings Per Share Guidance

in Preliminary Results for First Quarter

Company to Announce Final First Quarter Fiscal 2014 Results

on October 30, 2013

COSTA MESA, Calif., October 15, 2013 – Emulex Corporation (NYSE:ELX), a leader in network connectivity, monitoring and management, today announced that it expects to report revenues of approximately $113-$114 million for the first fiscal quarter ended September 29, 2013, compared to the range of $109-$111 million previously projected in August 2013 during the Company’s fourth quarter conference call. The Company expects non-GAAP earnings per share for its first fiscal quarter to be approximately $0.12-$0.13 per diluted share, compared to the prior projection of $0.09-$0.11 per diluted share. On a GAAP basis the Company expects to report a loss of approximately $0.05-$0.06 per share compared to the prior projected loss of $0.05-$0.07 per share. A reconciliation between expected GAAP and non-GAAP results is included below.

President and CEO Jeff Benck commented, “I’m pleased to announce that we were able to exceed the high end of both our revenue and earnings objectives, providing a solid start to the new fiscal year. We were able to achieve these results by delivering stronger than expected top line performance as well as tighter operational control,” Benck concluded.

Emulex expects to announce its final first quarter results on October 30, 2013 and will provide additional information and commentary on that quarterly conference call.

Emulex Exceeds the High End of Revenue and Earnings Guidance in Preliminary Results for Q1

October 15, 2013

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About Emulex

Emulex, a leader in network connectivity, monitoring and management, provides hardware and software solutions for global networks that support enterprise, cloud, government and telecommunications. Emulex’s products enable unrivaled end-to-end application visibility, optimization and acceleration. The Company’s I/O connectivity offerings, including its line of ultra high-performance Ethernet and Fibre Channel-based connectivity products, have been designed into server and storage solutions from leading OEMs, including Cisco, Dell, EMC, Fujitsu, Hitachi, HP, Huawei, IBM, NetApp and Oracle, and can be found in the data centers of nearly all of the Fortune 1000. Emulex’s monitoring and management solutions, including its portfolio of network visibility and recording products, provide organizations with complete network performance management at speeds up to 100Gb Ethernet. Emulex is headquartered in Costa Mesa, Calif., and has offices and research facilities in North America, Asia and Europe. For more information about Emulex (NYSE:ELX) please visit http://www.Emulex.com.

Note Regarding Non-GAAP Financial Information

This news release contains earnings per share information under both a U.S. generally accepted accounting principles (GAAP) basis and non-GAAP basis. This non-GAAP financial measure excludes certain expenses and reflect an additional way of viewing aspects of our operations that, when viewed with the GAAP results and the reconciliations to the corresponding GAAP financial measure, provide a more complete understanding of our results of operations and the factors and trends affecting our business. However, this non-GAAP measure should be considered as a supplement to, and not as a substitute for, or superior to, the corresponding measure calculated in accordance with GAAP. We use our non-GAAP financial measures internally to better understand and evaluate our business, prepare annual budgets, and in measuring performance for some forms of compensation.

Non-GAAP diluted earnings per share reflects adjustments based on the following items, as well as the related income tax effects:

Stock-based compensation. Although stock-based compensation represents an important part of incentive compensation offered to our key employees, we believe that exclusion of the impact of stock-based compensation assists management and investors in evaluating the period over period performance of our business operations and in comparing our performance with those of our competitors. Stock-based compensation expense will recur in future periods.

Amortization of intangibles. Amortization of intangibles generally represents costs incurred by an acquired company or other third party to build value prior to our acquisition of the intangible assets. As such, it is effectively part of the transaction costs

Emulex Exceeds the High End of Revenue and Earnings Guidance in Preliminary Results for Q1

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of the acquisition rather than ongoing costs of operating our core business. As a result, we believe that exclusion of these costs in presenting non-GAAP financial measures provides management and investors a more effective means of evaluating its historical performance and projected costs and the potential for realizing cost efficiencies within our core business. Amortization of intangibles will recur in future periods.

Patent litigation damages, license fees and royalties. We have incurred expenses in the form of damages, sunset period royalties and settlement costs as a result of a judgment in a patent litigation proceeding with Broadcom and the related partial settlement and worldwide license agreement executed on July 3, 2012 (the Release Agreement). We believe that exclusion of charges related to the Broadcom patent damages, sunset period royalties and Release Agreement are useful to management and investors in evaluating the performance of our ongoing operations on a period-to-period basis and relative to our competitors, as this amount relates to a judgment in litigation and does not reflect a continuing cost of operating our core business. In this regard, we note that expenses of this type are generally unrelated to our core business and/or infrequent in nature but will continue in future periods until affected products are phased out.

Mitigation expenses related to the Broadcom patents. We have recognized mitigation expenses related to the Broadcom patents. We believe that exclusion of these redesign, requalification and appeal expenses is useful to management and investors in evaluating the performance of our ongoing operations on a period-to-period basis and relative to our competitors. In this regard, we note that expenses of this type are infrequent in nature.

Valuation allowance for U.S. federal and state deferred tax assets. The Company has concluded that it is more likely than not that we will be unable to fully utilize the majority of our U.S. federal and state deferred tax assets As a result, the Company has previously recorded a valuation allowance against those assets to the extent that they cannot be realized through net operating loss carrybacks to prior tax years. We believe that eliminating the impact of a discrete adjustment of this nature and its continuing impact on our effective tax rate is useful to management and investors in evaluating the performance of the Company’s ongoing operations on a period-to-period basis and relative to the Company’s competitors. In this regard, we note that adjustments of this type are generally infrequent in nature.

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“Safe Harbor’’ Statement under the Private Securities Litigation Reform Act of 1995: With the exception of historical information, the statements set forth above, contain forward-looking statements that involve risk and uncertainties. We expressly disclaim

Emulex Exceeds the High End of Revenue and Earnings Guidance in Preliminary Results for Q1

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any obligation or undertaking to release publicly any updates or changes to these forward-looking statements that may be made to reflect any future events or circumstances. We wish to caution readers that a number of important factors could cause actual results to differ materially from those in the forward-looking statements. These factors include the possibility that we may not realize the anticipated benefits from the acquisition of Endace on a timely basis or at all, and may be unable to integrate the technology, operations and personnel of Endace into our existing operations in a timely and efficient manner. In addition, intellectual property claims, with or without merit, that could result in costly litigation, cause product shipment delays, require us to indemnify customers, or require us to enter into royalty or licensing agreements, which may or may not be available. Furthermore, we have in the past obtained, and may be required in the future to obtain, licenses of technology owned by other parties. We cannot be certain that the necessary licenses will be available or that they can be obtained on commercially reasonable terms. If we were to fail to obtain such royalty or licensing agreements in a timely manner and on reasonable terms, our business, results of operations and financial condition could be materially adversely affected. Ongoing lawsuits, such as the action brought by Broadcom Corporation (Broadcom), present inherent risks, any of which could have a material adverse effect on our business, financial condition, or results of operations. Such potential risks include continuing expenses of litigation, risk of loss of patent rights, risk of monetary damages, risk of injunction against the sale of products incorporating the technology in question, counterclaims, attorneys’ fees, incremental costs associated with product or component redesigns, potential liabilities to customers under reimbursement obligations or contractual indemnification provisions, and diversion of management’s attention from other business matters. With respect to the continuing Broadcom litigation, such potential risks also include the adequacy of any sunset period to make design changes, the ability to implement any design changes, the availability of customer resources to complete any re-qualification or re-testing that may be needed, the ability to maintain favorable working relationships with Emulex suppliers of serializer/deserializer (SerDes) modules, and the ability to obtain a settlement which does not put us at a competitive disadvantage. In addition, the fact that the economy generally, and the technology and storage market segments specifically, have been in a state of uncertainty makes it difficult to determine if past experience is a good guide to the future and makes it impossible to determine if markets will grow or shrink in the short term. Continued weakness in domestic and worldwide macro-economic conditions, related disruptions in world credit and equity markets, and the resulting economic uncertainty for our customers, as well as the storage and converged networking market as a whole, has and could continue to adversely affect our revenues and results of operations. As a result of these uncertainties, we are unable to predict our future results with any accuracy. Other factors affecting these forward-looking statements include but are not limited to the

Emulex Exceeds the High End of Revenue and Earnings Guidance in Preliminary Results for Q1

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following: faster than anticipated declines in the storage networking market, slower than expected growth of the converged networking market or the failure of our Original Equipment Manufacturer (OEM) customers to successfully incorporate our products into their systems; our dependence on a limited number of customers and the effects of the loss of, decrease in or delays of orders by any such customers, or the failure of such customers to make timely payments; the emergence of new or stronger competitors as a result of consolidation movements in the market; the timing and market acceptance of our products or our OEM customers’ new or enhanced products; costs associated with entry into new areas of the network, server, storage and performance management technology markets; the variability in the level of our backlog and the variable and seasonal procurement patterns of our customers; any inadequacy of our intellectual property protection and the costs of actual or potential third-party claims of infringement and any related indemnity obligations or adverse judgments; the effect of any actual or potential unsolicited offers to acquire us; proxy contests or the activities of activist investors; impairment charges, including but not limited to goodwill and intangible assets; changes in tax rates or legislation; the effects of acquisitions; the effects of terrorist activities, natural disasters, and any resulting disruption in our supply chain or customer purchasing patterns or any other resulting economic or political instability; the highly competitive nature of the markets for our products as well as pricing pressures that may result from such competitive conditions; the effect of rapid migration of customers towards newer, lower cost product platforms; transitions from board or box level to application specific integrated circuit (ASIC) solutions for selected applications; a shift in unit product mix from higher-end to lower-end or mezzanine card products; a faster than anticipated decrease in the average unit selling prices or an increase in the manufactured cost of our products; delays in product development; our reliance on third-party suppliers and subcontractors for components and assembly; our ability to attract and retain key technical personnel; our ability to benefit from our research and development activities or government grants related thereto; our dependence on international sales and internationally produced products; changes in accounting standards; and any resulting regulatory changes on our business. These and other factors could cause actual results to differ materially from those in the forward-looking statements and are discussed in our filings with the Securities and Exchange Commission, including our recent filings on Forms 10-K and 10-Q, under the caption “Risk Factors.”

This news release refers to various products and companies by their trade names. In most, if not all, cases these designations are claimed as trademarks or registered trademarks by their respective companies.

Emulex Exceeds the High End of Revenue and Earnings Guidance in Preliminary Results for Q1

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Forward-Looking Diluted Earnings per Share Reconciliation: