This laptop charger is a replacement AC adapter designed for various brands including Acer, ASUS, Lenovo, and Samsung. It has a voltage of 19V and an output current of 3.42A, making it compatible with laptops that require a 65W power supply. The charger is black in color and has a compatible product line of Asus Vivobook, Acer Aspire V13, Asus Zenbook, ASUS Transformer Book, and Acer Aspire One.