A container includes an outer case with an interior volume sized to receive an equipment rack assembly, which in turn includes an inner (i.e., movable or slidable) platform assembly slidably coupled to an outer (i.e., non-movable or fixed) isolation assembly fixed to the case. In one example, the inner platform assembly slidably engages the outer isolation assembly using a joint, such as a dove-tail style joint. In addition, the outer isolation assembly may be supported by one or more shock absorbent devices positioned between the outer isolation assembly and the case. The shock absorbent devices may be positioned, oriented and tuned to achieve a desired amount of shock attenuation and damping.