Two mqtt brokers

Configuration
1

Sorry if I sound a complete noob but I am confused about the MQTT in my hass.io.

I see a MQTT broker in configuration>integrations as

Screen Shot 2020-12-25 at 08.26.10
Screen Shot 2020-12-25 at 08.26.101542×1264 50.1 KB
but I also see a MQTT broker in my supervisor> dashboard running (
Screen Shot 2020-12-25 at 08.27.12
Screen Shot 2020-12-25 at 08.27.122178×1212 230 KB
)

they’re both running but I don’t remember setting up the supervisor one.

Is this normal? Which one should I use? Should I remove one? Is there any specific advantage of using one over the other?

Thank you for helping me understanding.

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2

Te top one is the integration to connect Home Assistant to the MQTT Broker, the bottom one is the actual MQTT Broker, which you installed as an add-on for Home Assistant. You need both in order to have MQTT in Home Assistant.
The clients connect to the MQTT Broker and the integration is used to make Home Assistant a client of the MQTT broker.

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