Designed for the healthcare market and capable of withstanding heavy use due to its UL Hospital Grade certification. Features include an improved overall 3.1A USB charging capability, auto-ground clips, zinc-plated ground terminal screw, as well as triple-wipe brass contacts for lasting retention. The screw-pressure-plate back wiring makes installation fast and easy. Also available in black, brown, green, gray, ivory, light almond and red.For detailed Tamper-Resistant receptacle information, visit our Tamper-Resistant Receptacles page.