This box has a 5" (127mm) depth design and can accommodate four duplex power receptacles on one side. Power plate with duplex knockouts included with box. The communication plate will accept at least three communication adapters for up to 18 ports of activation. Lids rotate 180° for easy orientation. Gray lids are diecast zinc construction. NOTE: For custom options, consult factory. All boxes are sold with one power plate: 4" (102mm) deep boxes have plate with two power duplex receptacle KOs, 5" (127mm) deep boxes have plate with four power duplex receptacle KOs. All communication plates sold separately.