Electrical Box Box Type Square Number of Gangs 2 Bracket Type - Capacity 42 cu in Material Steel Number of 1/2 in Back Knockouts 3 Number of 1/2 in Side Knockouts 12 Clamp Type - Number of 3/4 in Back Knockouts 4 Number of 3/4 in Side Knockouts 10 Nominal Depth 2 1/8 in Nominal Length 4 11/16 in Nominal Width 4 11/16 in Color Silver