Ethernet ports allow a laptop to wirelessly transmit data at very high speeds to a network. They are typically found on networking equipment, such as hubs and switches for wired Ethernet networks. In addition, Ethernet tethering is the process of turning your laptop into a mobile hotspot for other wireless devices that do not have an Internet connection. This has been an industry-standard tethering method since 2010 when Verizon coined it as “WiFi Unleashed.”
Some laptops come with built-in Ethernet cards or female Ethernet jacks in case you need them to hardwire into a computer or other device. You can also purchase an adapter externally from third parties.