Black clip cord.  Basic design, reliable, and well-priced.  With proper care, clip cords should last for a long time.  When you pull the phono plug out of a power supply do not pull from the wire, pull from the metal housing, if you pull from the wire, it may stretch the wire or cause the soldered connectors in the phono plug to break.  This clip cord is 5 feet long, has a 1/4″ phono plug, and will fit all standard power supplies.