Affymetrix to Webcast Presentations at September Financial Conferences

Affymetrix, Inc. (Nasdaq: AFFX) today announced that company management will provide a corporate overview at four conferences in September.

John Batty, Executive Vice President and CFO, will present at the following conferences:

• Robert W. Baird Healthcare Conference, New York, NY, on Wed., Sept. 9 at 8:30 am ET
• Thomas Weisel Partners Healthcare Conference, Boston, MA, on Thurs., Sept. 10 at 9:10 am ET
• Morgan Stanley Healthcare Conference, New York, NY, on Mon., Sept. 14 at 2:45 pm ET

In addition, Affymetrix President and CEO Kevin King will present at the UBS Global Life Sciences Conference in New York, NY, on Sept. 22 at 10:00 am ET.

Live webcasts of all presentations will be available at www.affymetrix.com via the "Investors" link in the "About Affymetrix" drop-down menu. Archived webcasts will be available for 30 days.

About Affymetrix

Affymetrix technology is used by the world’s top pharmaceutical, diagnostic and biotechnology companies, as well as leading academic, government and not-for-profit research institutes. More than 1,800 systems have been shipped around the world and more than 18,000 peer-reviewed papers have been published using the technology.

Affymetrix is headquartered in Santa Clara, Calif., and has manufacturing facilities in Cleveland, Ohio, and Singapore. The company has about 1,100 employees worldwide and maintains sales and distribution operations across Europe and Asia. For more information about Affymetrix, please visit the company’s website at www.affymetrix.com.