The universal power supply provides the required 5VDC and 12VDC to the camera from typical line voltages found around the world. It has an on/off switch and green LED showing power is on to the camera. A separate cord is available with regional plug for N. America and Europe / Asia. This is the supply that is included with all current models of ST-7/8/9/10/2000 cameras. It is compatible with all all past models as well.