With this set by Delock, patch cables can be locked in a network jack. The Secure clip is attached to the RJ45 connector and replaces the latch. Thereby the connector can be interlocked in the RJ45 jack, and the cable is protected against removal. At the same time, the socket is blocked and secured from unauthorised use. This allows control of physical access to the network in safety-critical areas, e.g. in public places or data centers. The system can be used with standard patch cables. To open the lock, the Secure Clip Tool is required.