Expand your power base to run 5 separate tools plus (2) USB devices from the same duplex receptacle. The Prime® Workshop Power Block uses a wide-spaced design for the 5 outlets to accommodate transformer plugs. Keep your phone or smart device charged with (2) USB ports. Easily install on an existing grounded outlet with the mounting screw included. A shelf area on top of this heavy-duty workshop tap supports your smart phone while charging.