hi  @Dinesh1191 

It's normal for the device to generate some heat during operation.

Make sure that the environment where the EAP 772 is placed has good ventilation. Adequate air circulation can help dissipate the heat effectively.

What's more, use a good quality Ethernet cable to power it on. 

If these conditions are met, you don't need to worry too much. The device is designed to handle normal operating temperatures within its specifications.

Different hardware versions only have slight differences in materials used. They have exactly the same functions and there is almost no difference in performance.