This adapter is a reliable power source for laptops and docks. It comes in black color and has a maximum output power of 170W with an output current of 8.5A. The voltage requirement for the adapter is 20V and it includes a power cable. The adapter is compatible with Elgato Thunderbolt 3 dock and has a model number of PA-1171-72 117172QMD18250020430A. It is a type of AC and DC charger and was manufactured in China. This product is perfect for those who need a replacement or an additional charger for their laptop or dock.