Black aluminium indoor, fits RB411, RB911, RB912 and RB922 series, set of front panels. CA411-711 is new indoor case for RBM11G, RB411, RB911, RB912 and RB922 series. It has changeable front panels, so you can choose one that fits the product that you actually use. Also, case is higher to accommodate high-power wireless cards and has wall mounting holes on the back.