The Axial-Tech fan design has a smaller hub that allows for longer blades and a locking ring that increases downward air pressure. The 2.5-slot design maximises compatibility and cooling efficiency for superior performance in small cases. With 0dB technology, you can enjoy light gaming in relative silence. Dual BIOS allows you to switch between "Quiet" and "Performance" BIOS profiles. Double ball bearings for fans last up to twice as long as plain bearings.