Avocent SonicAdmin Software for Palm OS® Named Best -In -Class Grand Prize Powered Up Award Winner by

SonicAdmin Software Tops More Than 4,000 Nominations

Avocent SonicAdmin Software for Palm OS® Named Best -In -Class Grand Prize Powered Up Award Winner by PalmSource, Inc.

SonicAdmin Software Tops More Than 4,000 Nominations

Calgary, AB, December 21, 2005 - Avocent Corporation (NASDAQ:AVCT) today announced that the SonicAdmin mobile systems administration software for Palm OS® was selected as the Best -In -Class Grand Prize Winner by PalmSource, Inc. in its Fall 2005 U.S. Powered Up awards competition. Avocent SonicAdmin software provides secure remote management of servers and network equipment from a Palm Powered™ wireless handheld device. SonicAdmin software enables mobile resolution of critical IT events whenever and wherever they occur across the enterprise without the need for IT staff to return to a fixed location to diagnose and address a problem.

"We are extremely pleased to receive this recognition from PalmSource," said Derek Ball, chief regional officer of Avocent Corporation and general manager of the Avocent Mobile Technologies division. "SonicAdmin software on a Palm® handheld device allows IT staff to respond instantly to critical system events, regardless of their location, and to handle routine tasks such as resetting user passwords, while 'on the run', which is often the case in a busy IT department."

The Fall 2005 U.S. Powered Up Awards were sponsored by PalmSource, Palm, Inc., Cingular Wireless, PalmGear.com, a division of Motricity, and CNET Download.com. The Powered Up Award winners, were selected by a panel of judges from the sponsors. Applications were evaluated on the basis of innovation, popularity, benefits, ease -of -use and support.

"The Powered Up Awards were designed to recognize those Palm OS developers who have created innovative applications representing the best of breed in the Palm Powered™ Economy," said Albert Chu, vice president of business development for PalmSource. "SonicAdmin from Avocent is truly deserving of the Best -in -Class Grand Prize because it exemplifies a Palm OS application that truly empowers the user and, at the same time, takes advantage of the advanced features of Palm Powered phones and mobile devices."

SonicAdmin software will be featured in numerous web sites, email and newsletters over the next month from PalmSource, Palm, Cingular Wireless, PalmGear, a division of Motricity, and CNET Download.com.

About PalmSource
PalmSource, Inc., a wholly owned subsidiary of ACCESS Co., Ltd, is the company behind Palm OS®, a leading operating system powering mobile devices and phones. PalmSource's products include a wide range of software for mobile phones at all price points. More than 40 million mobile phones, handhelds, and other mobile devices run PalmSource software. PalmSource and Palm OS have given rise to a large community of users, enterprises, developers and manufacturers, who together make up the Palm Powered™ Economy. More information about PalmSource is available at www.PalmSource.com, www.PalmSource.co.uk, www.PalmSource.fr, www.PalmSource.de, www.PalmSource.com/es and www.PalmSource.com.cn.

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. The Avocent Mobile Technologies division develops software to help enterprise customers manage their rapidly expanding deployments of smart mobile devices and to remotely administrate their corporate IT networks. Additional information is available at: www.sonicmobility.com.

Forward -Looking Statements
This press release contains statements that are forward -looking statements as defined within the U.S. Private Securities Litigation Reform Act of 1995. These include statements regarding market opportunity, product development, engineering and design activities, and product availability and operability. These forward -looking statements are subject to risks and uncertainties that could cause actual results to differ materially from the statements made, including the risks associated with general economic conditions, risks attributable to future product demand, sales, and expenses, risks associated with product design efforts and the introduction of new products and technologies, risks associated with reliance on a limited number of component suppliers and single source components, and risk associated with obtaining and protecting intellectual property rights. Other factors that could cause operating and financial results to differ are described in Avocent's annual report on Form 10 -K filed with the U.S. Securities and Exchange Commission.

Avocent, and the Avocent logo are trademarks of Avocent Corporation. PalmSource, Palm OS, Palm Powered and certain other trade names, trademarks and logos are trademarks which may be registered in the United States, France, Germany, Japan, the United Kingdom, and other countries and are either owned by PalmSource, Inc. or its affiliates, or are licensed by PalmSource, Inc. from Palm Trademark Holding Company, LLC. These marks may not be used in connection with any product or service that does not belong to PalmSource, Inc. (except as expressly permitted by a license with PalmSource, Inc.), in any manner that is likely to cause confusion among customers, or in any manner that disparages or discredits PalmSource, Inc., its licensor, its subsidiaries or affiliates. All other trademarks or company names are trademarks or registered trademarks of their respective companies.

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