Get rid of the rat nest of wires around your tank! Keep all of your aquarium equipment safe and organized with the Adaptive Reef Controller Board! Most of us have a scary tangle of cords coming out of our controllers and running behind the aquarium. Not only is this a nightmare for maintenance, but this creates an unsafe environment, as cords and plugs may not be isolated from water, and power supplies could potentially be exposed to splashes or spills around the aquarium. The Aquarium Controller Boards provide a convenient way to organize all of your controller modules, as well as other equipment controllers and drivers, into one place. Create a professional, classy looking display you can be pround to show off! The Controller Board includes 13 cut-outs, 9 small (3″W x 1.25″H) and 4 large (1.25″W x 6″H), for routing wires behind the board. The kit also includes cutout plugs and 2 small shelves on the back, as well as four small rails on the back of the board to secure the cords and keep everything tidy. There are also larger accesory shelves (available for purchase separately) that can mount to the board and support other types of equipment such as dosing pumps or containers that may not mount directly to the board. Specifications: Board Dimensions: 16.25″L x 25.25″H x 3.5″W Faceplate Thickness: 1/2″ Cord Cutouts: 13 Total. (9x 3″L x 1.25″H, 4x 4x 1.25″L x 6″H) Internal Shelf: 2x “L x 2.5″W Cord Rails: 4 What Included? 1x Controller Board, Black 6x Cord Cutout Plugs 3x Cord Guide Grommets User Manual P1 User Manual P2