The IEC Lock patented connector locking features eliminates chances of any power failures due to accidental unplug to IEC C13 connectors from any crictical infrastructure.The cable is one piece & is based on plug and go .This can be plugged to any standard IEC connectors in UPSPDU'sServers Workstations etc.The self locking IEC C13 connector can be pushed & connected to any IEC C14 socket and can be pulled out very easily by simply sliding the red button backwards on IEC C13 connector.