Abstract: A circuit board storage cabinet assembly provided having first and second panel members, a plurality of elongate frame members connected to the panel members, and a plurality of side panels. Each of the frame members has a first pair of grooves disposed perpendicularly to each other and a second pair of grooves disposed perpendicularly to each other. The second pair of grooves of adjacent frame members cooperate to hold a circuit board. Each of the side panels has two edges, with each elongate frame member first pair of grooves having disposed therein adjacent side panels. Each side panel has two side edges, a central planar portion having a planar outer surface and a planar inner surface, a panel insert portion directly adjacent each of the side edges, and a pair of intermediate panel portions, with each of the intermediate panel portions extending between the central planar portion and one of the panel insert portions.