Standard AC duplex receptacle with two USB charging ports rated at 2.1A. Dual USB charging ports charge most compatible electronic devices that charge via 5V charger adapter. LED indicator light notifies user that device is connected. 3 pre-stripped 6 wire leads for line, neutral and ground for quick and easy installation. Tamper resistant shutters provide compliance with 2011 NEC Article 406.12. Automatic grounding system eliminates need for bonding jumper in grounded metal enclosure and provides redundant measure of ground continuity where jumper is used. Thermoplastic top and back-body are virtually unbreakable to deliver years of durable performance. Steel mounting strap is zinc-plated for added corrosion resistance. Convenient patented built-in wire strippers speed installation. Triple wipe blade contacts and double wipe ground contacts to ensure long-term blade retention.