Black Box is a Lawrence, Pennsylvania company specializing in data communication and connectivity devices. The company was founded in April of 1976 as Expandor, Inc. In early 1977 it published a data communications specialty catalog called BLACK BOX. Because of the popularity of the catalog, the company changed its name to Black Box shortly after the initial publication. Black Box remains a successful distribution company in 2001 and employs nearly 4000 people worldwide according to their web site.