A system includes a first connector end and an electrical device having a second connector end. The first connector end has a number of electrical coupling features, where the electrical coupling features have a first subset of electrical coupling features and a second subset of electrical coupling features. The first electrical device has a second connector end detachably coupled to the first connector end, where the second connector end has a number of complementary electrical coupling features coupled to the electrical coupling features of the first connector end. The first subset of electrical coupling features can provide a first power signal to a first subset of complementary electrical coupling features of the second connector end.