With a network switch, you can set up more wired internet connectors. You connect your switch via the Ethernet cable and connect your devices to that. Want to change settings? If you choose a managed switch, you can adjust it to your preferences. That way, you can set up better security and increase the performance. Choose a PoE switch if you want to run power through the Ethernet cable. You connect this type of network switch to a suitable surveillance camera or access point, so you don't need a power adapter.