The GX series of power supplies are on their second version and have some very promising aspects. Cougar claims the GX V2 power supplies are up to 93% efficient with less than 3% voltage regulation with low ripple. On top of that, they also use their own Vortex fan which they claim improves airflow at low RPMs, thus helping the unit stay quieter. Read more at http://www.tweaktown.com/reviews/4923/cougar_gx800_800_watt_80_plus_gold_power_supply_review/index.html#umQWlCxo4DAe756c.99



Link: Tweaktown