Affymetrix, Inc. (NASDAQ:AFFX) today announced its first quarter 2011 financial results will be reported on Wednesday, April 27, 2011, after market close. The company will also hold a conference call on the same day at 5:00 p.m. ET to discuss operating results.

A live webcast can be accessed by visiting the investor relations section of the company’s website at www.affymetrix.com. Alternatively, investors and other interested parties may listen to the live conference call by dialing 877-407-8291 (domestic) or 201-689-8345 (international).

A replay of this call will be available from 5:00 p.m. PT on April 27, 2011 until 8:00 p.m. PT on May 4, 2011 at the following numbers: 877-660-6853 (domestic), 201-612-7415 (international). The conference identification number for the replay is 370998. An archived webcast of the conference call will be available under the investor relations section of the company's website at www.affymetrix.com.

About Affymetrix

Affymetrix technology is used by the world's top pharmaceutical, diagnostic, and biotechnology companies, as well as leading academic, government, and nonprofit research institutes. More than 2,000 systems have been shipped around the world and more than 23,000 peer-reviewed papers have been published using the technology.

Affymetrix is headquartered in Santa Clara, Calif., and has manufacturing facilities in Santa Clara, Cleveland, Ohio, and Singapore. The company has about 900 employees worldwide and maintains sales and distribution operations across Europe, Asia, and Latin America. For more information about Affymetrix, please visit www.affymetrix.com.

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