AVOCENT TO PRESENT AT THE FIRST ANNUAL MERRIMAN CURHAN FORD & CO. INVESTOR SUMMIT ON SEPTEMBER 21, 2004

HUNTSVILLE, Ala. — September 20, 2004 — Avocent Corporation (NASDAQ: AVCT) today announced that Dusty Pritchett, Senior Vice President of Finance and Chief Financial Officer, will present at the First Annual Merriman Curhan Ford & Co. Investor Summit on September 21, 2004, at 12:30 p.m. Pacific Time. This event will be held at the Mark Hopkins Hotel in San Francisco.

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=929216.

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.