Use this RJ45 port lock around RJ45 sockets to prevent unwanted connection of connection cables. Also prevents unauthorised access via the network. The lock secures itself to the RJ45 port and can be removed again with the appropriate key. It locks with the front panel of the RJ45 port inside the housing prevent it from being simply pulled out. Expansion kit with 20 port locks Keys available under Article No. 40470 Safety information: For safety reasons, please note that these locks can also be removed without the key with skill and an appropriate tool. Please note: this key is only compatible with the corresponding colour of port blocker.