**CERTIFICATIONS**I, Michael J. Rockenbach, certify that:     1. I have reviewed this quarterly report on Form 10-Q of Emulex Corporation;     2. Based on my knowledge, this report does not contain any untrue statement of a material factor omit to state a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading with respect to the periodcovered by this report;     3. Based on my knowledge, the financial statements, and other financial information includedin this report, fairly present in all material respects the financial condition, results ofoperations and cash flows of the registrant as of, and for, the periods presented in this report.     4. The registrant’s other certifying officer and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules(3a-15(f) and 15d-15(f)) for the registrant and have: a) Designed such disclosure controls and procedures, orcaused such disclosure controls and procedures to be designed under oursupervision, to ensure that material information relating to theregistrant, including its consolidated subsidiaries, is made known to us byothers within those entities, particularly during the period in which thisreport is being prepared;  b) Designed such internal control over financialreporting, or caused such internal control over financial reporting to bedesigned under our supervision, to provide reasonable assurance regardingthe reliability of financial reporting and the preparation of financialstatements for external purposes in accordance with generally acceptedaccounting principles;  c) Evaluated the effectiveness of the registrant’sdisclosure controls and procedures and presented in this report ourconclusions about the effectiveness of the disclosure controls andprocedures, as of the end of the period covered by this report based onsuch evaluation; and  d) Disclosed in this report any change in the registrant’sinternal control over financial reporting that occurred during theregistrant’s most recent fiscal quarter that has materially affected, or isreasonably likely to materially affect, the registrant’s internal controlover financial reporting; and     5. The registrant’s other certifying officer and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the registrant’s auditors and the auditcommittee of registrant’s board of directors (or persons performing the equivalent function): a) All significant deficiencies and material weaknesses inthe design or operation of internal control over financial reporting whichare reasonably likely to adversely affect the registrant’s ability torecord, process, summarize and report financial information; and  b) Any fraud, whether or not material, that involvesmanagement or other employees who have a significant role in theregistrant’s internal controls over financial reporting.Date:November 11, 2005                                          /s/ Michael J. Rockenbach   Michael J. Rockenbach   Chief Financial Officer   EXHIBIT 31B