AVOCENT TO PRESENT AT THE SG COWEN & CO. 33rd ANNUAL TECHNOLOGY CONFERENCE ON JUNE 1, 2005

HUNTSVILLE, Ala. — May 31, 2005 — Avocent Corporation (NASDAQ: AVCT) today announced that Dusty Pritchett, Senior Vice President of Finance and Chief Financial Officer, will present at the SG Cowen & Co. 33rd Annual Technology Conference on June 1, 2005, at 10:30 a.m. Eastern Time. The event is being held at The Westin Times Square in New York City.

The live Webcast of Avocent’s presentation will be available on the Company’s Web site, www.avocent.com, by clicking on the “Investors Relations” link or at:

http://www.corporate-ir.net/ireye/confLobby.zhtml?ticker=AVCT&item_id=1074264.

A replay of the presentation will be available shortly after its conclusion at the Company’s Web site.

About Avocent Corporation
Avocent Corporation is the leading supplier of connectivity solutions for enterprise data centers, service providers and financial institutions worldwide.  Branded products include switching, extension, intelligent platform management interface (IPMI), remote access and video display solutions.  Additional information is available at: www.avocent.com.