A hard disk drive bracket includes a bezel, a lever arm attached to the bezel rotatably between a closed position against the bezel and an open position apart from the bezel, a release mechanism attached to the bezel including a locking member that latches the lever arm in the closed position and a release button arranged to unlatch the lever arm from the locking member when the release button is depressed, and a horn attached to the bezel translatably between a natural position apart from the release mechanism and a forced position that allows the horn and release mechanism to interact to unlatch the lever arm from the locking member. The horn and lever arm of the hard disk drive bracket may be adapted to serve as a cam that automatically depress the release button as the lever arm is being closed.