You can imagine WiFi channels as roads and the data as cars. This means 80 MHz, 160 MHz, and 320 MHz channels resemble different types of roads with 2, 4, or more lanes. The more lanes you have, the wider the road is for more cars to travel at faster speeds with fewer jams.
Whereas 80 MHz resembles a neighbourhood street and 160 MHz a 4-lane road, 320 MHz on WiFi 7 looks more like an 8-lane superhighway, allowing for more information transmission at the same time while freeing up heavier traffic.
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