THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

American Power Conversion Corporation (APCC)

4/28/2006 Proxy Information

Mr. Lyon was President of American Power Conversion and, from inception through June 1988, he was Chairman.

Since January 1, 2005, there has not been, nor is there currently proposed, any transaction or series of similar transactions to which the Company or any of its subsidiaries was or is to be a party in which the amount involved exceeded or will exceed $60,000 and in which any director, executive officer or holder of more than 5% of the Common Stock of the Company or any member of the immediate family of any of the foregoing persons had or will have a direct or indirect material interest.

4/27/2005 Proxy Information

Mr. Dowdell is the uncle of Aaron L. Davis, Vice President, Marketing Communications.

From its inception through August 1985, Mr. Lyon was President of American Power Conversion and, from inception through June 1988, he was Chairman.

Since January 1, 2004, there has not been, nor is there currently proposed, any transaction or series of similar transactions to which the Company or any of its subsidiaries was or is to be a party in which the amount involved exceeded or will exceed $60,000 and in which any director, executive officer or holder of more than 5% of the common stock of the Company or any member of the immediate family of any of the foregoing persons had or will have a direct or indirect material interest.

4/29/2004 Proxy Information

Rodger B. Dowdell is the uncle of Aaron L. Davis, Vice President, Marketing and Communications.

From 1984 through August 1985, Mr. Lyon was President of American Power Conversion and from 1984 through June 1988, he was Chairman.

Since January 1, 2003, there has not been, nor is there currently proposed, any transaction or series of similar transactions to which the Company or any of its subsidiaries was or is to be a party in which the amount involved exceeded or will exceed $60,000 and in which any director, executive officer or holder of more than 5% of the common stock of the Company or any member of the immediate family of any of the foregoing persons had or will have a direct or indirect material interest.

4/30/2003 Proxy Information

Rodger B. Dowdell is the uncle of Aaron L. Davis, Vice President, Marketing and Communications.