IEC extension cable that safeguards against accidental disconnection IEC C14 Plug to locking IEC C13 Socket Can be used as power extension or computer/monitor/UPS power connection lead This unique locking IEC mains extension cable is ideal for protecting electrical equipment from accidental disconnection. The IEC receptacle locks upon insertion into a device and can\'t easily be removed without operating the built-in release button. Ideal for safeguarding valuable computers, medical equipment, display devices or any other equipment exposed to the general public.