Alternating current adapters convert the AC power from your wall outlet to a smaller voltage direct current power for your electronic device. They accomplish this in two steps, first scaling the voltage and then converting the AC to DC. There are many kinds of AC DC adapter with different models like 7.5W Max Wall Mounted Adapter, 13.5W Max Wall Mounted Adapter, 24W Max Wall Mounted Adapter, Interchangeable Adapter, 18W Max Wall Mounted Adapter, etc.
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