Tripp Lite's UPSHDEARKIT front mount support bracket system accommodates 2U UPS systems in 4 post rackmount applications by using only the front vertical rails of the cabinet. Two included "L bracket" mounting ears offer front support of any Tripp Lite 2U rackmount chassis up to 65 lbs. Front Mount UPS support brackets Allows 2U UPS systems to be mounted by the front vertical rails. (No rear support needed) Supports any rackmount chassis up to 65 lbs Includes 2 heavy duty "L bracket" mounting ears