The Square D X Series USB A/A Duplex Decorator Tamper Resistant Outlet with back wire clamps combines a traditional receptacle with modern USB-A charging into a single receptacle. This outlet socket has a 15A current rating. The rated operational voltage of this device is 120VAC. Each outlet socket unit has two outlet sockets and is used to supply power. Each outlet socket has two poles and a ground. The connection terminals of this outlet socket are push-in termination and screw terminal. Its matching mounting box can be recessed into the surface of the wall for flush mounting. Complete the look with one of the Square D X Series cover plates (not provided) that easily snaps into place for a modern, flush-facing finish to your walls. Enjoy a consistent look across your room or home with the full line of Square D X Series switches, dimmers, sensors, and receptacles. Wiring and installation is fast and easy with back wire pressure plate and ground screw pressure plate. By satisfying the NEMA 5-20R, UL 498 standards, this socket outlet is cULus certified. X Series normalizes an array of new features, such as flush facing, easy installations, and connectivity, establishing a new benchmark for residential wiring devices. It has a width of 44mm, a height of 103mm and a depth of 45mm. This device supports up to 2.4A per USB A port (4.8A total) to quickly charge modern electronic devices. The dimensions are (W) 44mm x (H) 103mm x (D) 45mm. This device is grey with matte surface finish. Use both USB-A ports to charge two devices at the same, adding time-saving convenience to your home. This device is compliant with UL 1310, UL 498 standard and cULus certification.