Source: Tweaknews
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Fans, humble yet essential to the modern PC. Over the years these little devices have evolved significantly yet essentially remained the same. Technology has allowed for higher throughput and lower noise but at the end of the day they do the same thing they did ten years ago. One would think that with the cooling requirements of modern PCs that cases would come equipped with all the fans you should need but, in all but the highest priced and best quality cases, a single or dual fan setup is still the norm. That leaves most system builders needing a few extra fans to boost the airflow enough to keep their systems cool. The other reason to purchase fans is silent cooling, more and more builders and enthusiasts are pursuing this elusive goal today.