hub is rectangular box that is used as the central object on which computers and other devices are connected. To make this possible, a hub is equipped with small holes called ports. Here is an example of a hub:
Although this appears with 4 ports, depending on its type, a hub can be equipped with 4, 5, 12, or more ports. Here is an example of a hub with 8 ports:
When configuring it, you connect an RJ-45 cable from the network card of a computer to one port of the hub.
In most cases for a home-based or a small business network, you may not need a hub.
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