Solve : Power Supply keeps burning out. Why?????

1.	Solve : Power Supply keeps burning out. Why?????
Answer» I have replaced my power supply TWICE now in 3 months. Why is it burning out?1) Heat caused by restricted airflow. 2) Heat caused by overloading.Who was the manufacturer of these TWO units and how BIG were they? EL cheapo ones are not very trustworthy for correct current or longevity. What components are in that MYSTERY box?

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