Qualcomm Quick Charge 3.0 standard enebles quick charging of devices like smartphone and tablet four times faster than conventional chargers and 40% faster than in case of standard QC 2.0. Intelligent Negotiation for Optimum Voltage (INOV) function - recognizes devices automatically and adjusts charging current. Protection against electric overload, overcharging and overheating. Compatibility with Qualcomm Quick Charge 1.0 and 2.0. Maximum current while using USB port - 3A.