Familiar Unfamiliar / Extension Socket

It is always fun to discover how a minor change can bring a major difference in the end. Typical extension sockets usually provide three outlets rotated 90 degree from the inlet. Used with a power strip, the extension sockets may increase the number of AC outlets but only in sacrifice of neatness. If an extension socket is implemented with two outlets, that is, one is a pass-through and the other is a switched output of the inlet, what we get is a fusion of a power strip and the extension sockets. Despite of the familiar shape with its ancestors, the new extension socket delivers power in an unfamiliar but more flexible way.