The Fluctus 120 PWM is a fan with an optional semi-passive mode. Although it's just 12 cm tall, it could easily compete with larger opponents in a cooling power duel.

This device keeps its cool (literally!) when handling not only densely finned radiators in liquid cooling systems but also chassis' with dust filters. It provides high efficiency and excellent performance in each case. It's also easy to install - even if you haven't done that before.