Full aluminum built cooling body constructed to fit three 3.5" drives within a two (5.25") bay fitting the DataCage Classic MB453 Series follows the tradition of industrial systems' needs for stability durability toughness and high sensitivities for mass storage operating conditions. It's equipped with a hot swappable fan that may be detached if confined by depth limitations when integrated or if replacement is necessary. Our removable fan requires no tools or wiring simply swap with a new fan and back to operation! It is space saving and user friendly for industrialized system solutions.