Featuring the industry first 9 exhaust fins design which generates a twisting wind pattern for focused air flow, hence more air to cool the object. With the 9 exhaust fins design the support structure between the case and the core has increased 3 fold, together with thicker side wall the case is so much stronger than the standard 30 mm fan. A round lip also moulded into the intake side of the fan for further smooth out the air flow. Last but not least, these fans have been manufactured with all new electronics.