This is a genuine Samsung ATADS30JBE travel adapter wall charger.
It is an original equipment manufacturer (OEM) charger designed for older Samsung devices.
The charger provides an output voltage of 4.75V and an output current of 550mA.
It features a proprietary 20-pin connector, not a modern USB-C or micro-USB port.
The adapter and cable have a glossy black finish and are made of plastic material.

Preowned - Used