CASTLE 240EX is equipped with Anti-leak Technology which will significantly improve operation safety of AIO liquid cooling systems. CASTLE 240EX’s pump is more powerful yet more quiet driven by a 3-phase, x-life motor, and a pressure charging impeller.25% more skived fins on backside of the copper base, the heat absorption area is extensively increased.The fans are also equipped with patented two-layer fan blades and flow-amplifying + noise-canceling frames.