Six-Foot Extension Cord Connects Computers, Printers, Servers and Other Equipment This power extension cable is designed for small data center or office workstation applications that do not require a heavy-gauge connection. With a NEMA 5-15P plug on one end and a NEMA 5-15R receptable on the other, this cord can be used to power a computer, printer or monitor; attach a rack server to a UPS system or PDU; or extend an existing connection up to six feet. The six-foot length allows you flexibility in placing equipment with respect to the power outlet.