This docking station contains internal power supply for Dell's Latitude 12 & 14 Rugged Extreme Notebooks. Adjustable front arms can be locked in position to accommodate a variety of compatible computers. Designed to be compatible with all Dell Latitude Rugged Extreme computers, in both laptop and tablet modes. Low profile design maximizes available space inside of vehicle. Basic port replication and integrated strain relieving provide simple, safe, and secure connectivity to essential peripherals, as well as convenient and efficient cable management. Rounded corners and edges are ideal for your safety in accidents and airbag deployment, in addition to daily use and operation of docking station.