Kensington Computer Products Group is a division brand of ACCO Brands, Inc. (located in Redwood Shores, California) that sells computer accessories and periphery such as computer mice, trackballs, computer keyboards, notebook bags, iPod accessories and power supplies. The brand is best known for the Kensington Lock, a lightweight lock system designed to secure notebooks and peripherals. Other products include Duster II canned air. Company history Kensington was founded in 1981 with the invention of the System Saver, a combined cooling fan and surge protector designed for use with the Apple II. They currently produce more than 300 different computer accessory products. A world leader in branded office products, ACCO Brands reported annual revenue of nearly $US2 billion, and currently markets products in more than 100 countries.