Now also available: RJ45 Ethernet Port Lock v1.0 here.
 

RJ45 Ethernet Cable Lock
A solução ideal para evitar desconexões acidentais em modems, routers, switches, servidores, hubs, placas-mãe e outros dispositivos.

Uma vez travado, o cabo só pode ser removido com a chave, garantindo mais segurança e estabilidade na conexão.
 

Recommendations:
To prevent warping due to high device temperatures, it is recommended to print the part using PETG. PETG also offers greater flexibility, which helps prevent cracking or breaking when inserting the key and triggering the release mechanism.
If you only have access to PLA, we suggest testing the key insertion and removal in the lock before using it on any actual device.