The HP power distribution unit (PDU) switch accessory allows all equipment plugged into a 16 amp modular PDU to turn on/off with one main switch. The two main pieces of the switch accessory are the switch module and the switch panel with a three-meter connecting cord. The main switch governs two separate relays located in the switch module. Each relay requires its own power cord for connection to a wall or UPS. If only one relay is utilizedonly one power cord is required.