The ARCTIC F12 PWM PST Technology is an impressive computer internal component... As my tests showed it guarantees a quiet operation while keeping the temperature down. Its PWM function allows it to regulate the speed automatically, which is useful if you don't want to make any adjustments manually. Moreover, the PST feature enables you to chain multiple fans TOGETHER, eliminating cable clutter. However, it may not offer the level of customization and control that an enthusiast would prefer. OveSee full review