The RESERATOR1 V2 is designed for optimal heat dissipation using Zalman's HCET (Heat Capacity Extrusion Technique) technology. As a result, this cooler achieves excellent cooling performance using natural convection, making the RESERATOR1 V2 a very efficient fanless (therefore silent) water cooling system! Unlike any aircooled system, the RESERATOR1 V2 has the ability to keep a processor at just a few degrees above room temperature regardless of CPU speed. This gives tremendous potential for reliability and overclocking.