Abstract: An extension cord having multiple female sockets which are attached to two or more conducting wires. In one embodiment of the invention, the cord has three or more conducting wires with two or more female sockets attached to the conducting wires. Each of the female sockets is attached to two of the conducting wires and each conducting wire is attached to at least one female socket. This may provide an extension cord having two or more electrically isolated circuits. Alternatively, or in addition, the cord may be configured to provide groups of female sockets each with different voltage ratings. In another embodiment of the invention, the cord has multiple socket blocks attached to the cord; each socket block housing one or more of the female sockets. A mooring member is attached to each of the socket blocks so that the cord may be fastened or held by an external object.