Abstract: A drive housing fixing means comprises an elongate locking bracket, a thumbscrew and a bolt. The locking bracket defines a first hole in a first end and forms a bend on a second end for being received in a slot defined in a computer chassis whereby the locking bracket is pivotably mounted to the chassis. A base plate is integrally formed with the chassis and defines a notch in a left portion thereof. A drive cage is mounted to a bottom surface of the base plate and a drive box is slidably received between the chassis and the top surface of the base plate. The bolt is fixedly received in a second hole defined in a left side wall of the drive cage and extends outside the drive cage. The locking bracket pivots downward to be received in the notch and to receive the bolt in the first hole thereof. The thumbscrew threadedly engages with the bolt to secure the locking bracket between the left side wall of the drive cage and the thumbscrew.