The Cisco blade-optimized PDU has four IEC C19 receptacles and two C13 receptacles. The PDU receptacle configuration is optimized for use with larger equipment such as the Cisco UCS 5108 chassis. The C19 receptacles can be used to power larger systems, such as the Cisco UCS 5108 chassis, and the C13 receptacles have been added to power smaller rack-level equipment, such as the Cisco UCS 6100 Series Fabric Interconnects. This International PDU is designed with an IEC 309 power plug. It can be mounted in either a 0RU or 1RU configuration.