Charge two devices simultaneously while still using the receptacle. Compatible with USB 2.0 & 3.0 compatible devices. Total charging capacity of 2.1A. AC receptacles are tamper-resistant to meet NEC: Code: patented shutter system prevents improper insertion of foreign objects. Back and side wire terminals accommodate #14AWG - #10 AWG stranded and solid copper wire for installation flexibility. Accepts standard Pass & Seymour Wall Plates. Amps: 15A, USB: 2.1A. USB Power Output: 11W.