Abstract: An electrical power supplying device for supplying electrical power to a group of electrical appliances located in an environment. The electrical power supplying device includes a power supply cord for plugging into a standard power receptacle by way of a supply power plug, and also a base housing portion having a 3D interior volume with a capacity for holding a plurality of power transformer modules associated with a group of electrical appliances located in the environment. A power-ring subassembly is supported within the base housing portion, and has a central aperture defining the boundaries of 3D interior volume, and adapted for supporting a plurality of electrical receptacles and one or more electronic circuits, which are electrically connected to the power supply cord.