Compliant with USB Battery Charging Spec 1.2 USB 2.0 / 1.1 / 1.0 specifications compliant Intelligently detects the power current of each port by the sensing meter with firmware. Supports Over-Current Protection and ±15kV (air) ±8kV (contact) ESD protection. Enables Sync/Charge mode switching upon manually connecting or disconnecting host port.