Hubbell-Raco 8524 2-1/2-Inch Deep Gangable Switch Electrical Box with TS Wood/Metal 1/2-Inch Setback Stud Bracket, 2 x 1/2-Inch Knockouts and 4 x NMSC Cable Clamps, 3-Inch x 2-Inch Cable clamps suitable for use with steel & alum armored cable, mci cable, mci-a cable and flexible conduit Switch boxes are used to house wiring devices such as switches or receptacles 12.5Cu. In. Capacity Acceptable for use in two hour fire rated wall The product is ul listed