Abstract: A shelf unit comprises a shelf and a support shroud. The support shroud defines a shroud concavity extending from the upper wall perimeter edge to the lower wall perimeter edge and bounded by the left and right side edges. The shelf is connected to the support shroud at a position disposed over the upper wall perimeter edge. The shelf optionally has a shelf aperture in communication with the shroud concavity. The shelf unit may be mounted with the shroud covering a wall outlet and an electronic device, disposed on the shelf, has cabling which passes through the shelf aperture and into the shroud concavity. In this application the cabling is contained in the shroud concavity.