Cooper Wiring TR7740V-K Combination USB Charger with Tamper Resistant Receptacle, IvoryThe Cooper Wiring Devices Combination USB Charger with Tamper Resistant Receptacle quickly and easily provides consumers with the ability to charge their electronic devices directly from a standard outlet without bulky adapters that can be lost or misplaced. Additionally, they contain UL approved Tamper Resistant Shutters to ensure compliance with the 2011 NEC Article 406. 12 that requires all 125V receptacles in dwelling units to be Tamper Resistant.