Usb Fast charging plug Buy 4 or more and get a discount Comes new in box Dual 4.2A fast USB wall socket $20  a pc OBO WIDE VOLTAGE we can design to support 110V to 240V which can be used widely all South America and North America as well as other American standard areas. INNER COPPER SHEET 0.8mm phosphor copper to keep the terminal low temperature and good conductivity. Real materials ensure your safety. TAMPER RESISTANT Complies with NEC ® requirement, all 15A and 20A receptacles installed in dwelling units should be with tamper-resistant. Receptacles with Shutter mechanism block access to the contacts unless the plug is fully inserted. FAST CHARGING 5V 2.1A Per USB port, total output 5V 4.2A. If you use one port charging , it can reach 4.2A .It can charge the device faster than old versions such as 5V 2.1A and 5V 3.1A.