Gangable 3" x 2" switch box, offers the option of constructing a box to hold two or more devices. Beveled corners prevent the clamp screws from protruding into the back wall. With nonmetallic sheathed cable clamps. Acceptable for use in 2-hour fire rated walls. Four cable knockouts (end). Two 1/2" conduit knockouts (end). 1/2" conduit knockouts (bottom). With leveling bumps. No plaster ears, not suitable for old work. 2-1/4" deep - 10.5 cubic inches. UL Listed.