AVOCENT CORPORATION ANNOUNCES
CONFERENCE CALL

HUNTSVILLE, Ala. — March 11, 2005 — Avocent Corporation (NASDAQ:AVCT) will hold a conference call to discuss its first quarter revenue estimate on Monday, March 14, 2005 at 9:00 am Central time. A press release with more detail will be issued on Monday morning before the market opens.

A simulcast of the conference call will be available on the Internet under the investor relations’ tab on the Company’s Web site, www.avocent.com, as well as www.vcall.com. The call will be available for replay on the Company’s Web site for approximately 30 days.

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.