http://www.supercircuits.com/Camera-Power-Supplies/ - Using a CCTV camera power supply offers more benefits than relying on individual power lines for multiple cameras. A security camera power supply and distribution box allows power wires to be neatly managed in the camera power supply box. It is also easy to install and manage the power cable of each CCTV camera using the box, as opposed to having different power supply plugs.