John McCartney
John McCartney was appointed to our board of directors on October 12, 2004. Since January 2001, he has served as chairman of the board of directors of Westcon Group, Inc., a specialty distributor of networking and communications equipment, on whose board he has served since August 1998. He was elected chairman of the board of directors of A.M. Castle Corporation, a steel distributor, on January 25, 2007 and has served on that board since 1998. In July 2005, Mr. McCartney was elected to the board of Federal Signal Corporation. On July 16, 2007, Mr. McCartney was appointed a non-executive director of Datatec Limited, a networking technology and services company. He had previously served as vice chairman of the board of directors of Datatec from October 1998 until May 2004. From December 2003 until January 2007, he served as chairman of the board of First Circle Medical, Inc., a privately held medical therapy company. From June 1997 to March 1998, he held the position of president of 3Com Corporation’s Client Access Unit. He joined the executive management team of US Robotics in March 1984 as vice president and chief financial officer and served in various executive capacities until serving as president and chief operating officer of US Robotics from January 1996 until its merger with 3Com Corporation in June 1997. Mr. McCartney received an MBA from The Wharton School of the University of Pennsylvania.