The Jonsbo HP-400S is a very quiet and efficient low-profile CPU cooler, ideal for compact systems. With a total height of only 40 mm, it fits easily into small enclosures and SFF builds. The flat 90-mm PWM fan provides a good balance between cooling performance and low noise levels. Thanks to its hydraulic bearing, the HP-400S operates quietly, durably and efficiently. The top-down design directs air directly onto the surrounding motherboard components, effectively cooling VRMs and memory as well. This keeps your entire system nice and cool - even under load. The Jonsbo HP-400S boasts high efficiency, compact design and whisper-quiet operation - the ideal solution for Mini-ITX systems and space-saving PC builds.