Suppose you have a Wi-Fi Router at home and the router's LAN ports are falling short.
Router LAN → TL-SG1005D → PC / TV / CCTV / Access Point / Other Router
This way you can use 5 Gigabit Ethernet ports.
Important: It does not create Wi-Fi by itself. However, if you connect a Wi-Fi Access Point or Router to it with a LAN cable, Wi-Fi can be used through that device.
And even with a 1 Gbps port, if your Internet package is 100 Mbps, the Internet speed will remain at a maximum of about 100 Mbps. However, data transfer up to 1 Gbps is possible between Gigabit-capable devices inside the LAN.