MSI Titan GT77HX User Manual page 22

Introductions
6. RJ-45 Connector
The Ethernet connector, with optionally supported transmitting rate of
10/100/1000/2500 megabits per second, is used to connect a LAN cable for network
connection.
7. Ventilator
The ventilator is designed to cool the system. DO NOT block the ventilator for air
circulation.
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