Install the fastest USB charger on the market. Charge your smartphones, tablets, and laptops up to 40% faster than 3-5A USB chargers, while enjoying the added power convenience of Tamper-Resistant outlets that meet NEC® requirements. Industry-leading charging capacity of 6.0A, shared between both ports. Protects children: patented shutter system helps prevent improper insertion of foreign objects - now with black "invisi-shutters" for an invisible effect.