A hard disk extracting box is formed by a box seat and a box cover. In some embodiments, a cross-point array of non-volatile memory cells is arranged into rows and columns. The camper further includes one or more stabilization braces that provide an attachment between the base of the camper and one of the four jacks. Each drive motor output shaft is keyed to connect to the input shaft driving the worm gear of the jack. A first stage in the explosion sequence is selected based on the first input.