Peplink B2500 Temperature

My device Peplink B2500 operation temperature go up to 53 °C but temperature at area is around 21 °C.
How maximum temperature for this device ? and what cause that device temperature get so high ?
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This is normal device temperature as the device will generate heat during its operation.

Do make sure the Balance model(s) are working under the recommended Operating Temperature (32° – 104°F / 0° – 40°C) for optimum performance.

If you have notice the unit behave abnormally, please open a support ticket here for the team to follow up.