Boost your physical network security starting at the port. Here's one of the simplest and inexpensive, yet most effective ways you can increase your Layer 1 security. Lock up your network ports with Series 3 Lockable Patch Cables and Key Locking Pins. If someone can't disconnect your network cable connections—either intentionally or accidentally—they can't tamper with and bring down your network.
The Key Locking Pins feature a specially designed clip, which can’t be released without this special Removal Tool.
To unlock the cable, simply insert the tool in the clip.
Datasheets
Removal Tool for LockPORT Key Locking Pins Datasheet