Premium Fast 30W - supports PD 3.0 and QC 3.0. * USB-C Power Delivery is a fast-charging technology over USB Type- C: connection, supported by - IOS I, Apple, and Android / Google devices deliver much higher power than standard charging. * Charge has the capability of four times fast charging than conventional charging. Quick Charge 3.0 is engineered to refuel devices twice as fast as Quick Charge 1.0 and is up to 38 % more efficient than Quick Charger 2.0. Backward compatible with Quick Charger 2.0 / 1.0 devices.