This is a Samsung Original wall charger with 25 Watt Super Fast Charge capability.

Super Fast Charging

This wall charger with 25 Watt Super Fast Charge capability uses PD (Power Delivery) to provide the most efficient charge possible. Any PD device, can charge at up to 25W. Other USB-C devices rates will vary.

Rapid Charging:

Plug into any standard wall outlet via the AC adapter. The Super Fast charger delivers up to 3 Amp to give your phone power at a much faster rate than your standard 1A or 700mA charger.