USB 3.0 is the USB charger compatible with the most popular residential and commercial wiring accessory systems, with a maximum output load of 3.0 A, two outputs, and equipped with type A and type C connectors. 110-230 V~ 50-60 Hz.
USB 2.1 is the USB charger compatible with the most popular residential and commercial wiring accessory systems, with a maximum output load of 2.1 A. 110-230 V~ 50-60 Hz supply
USB 2.4 is the USB charger compatible with the most popular residential and commercial wiring accessory systems ,with a maximum output load of 2.4 A, and with two outputs on a single module. Ideal for fast-charging smartphones, tablets, and other devices without the clutter of power supplies. 110-230 V~ 50-60
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