Axial-tech Fan Design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure. Dual ball fan bearings can last up to twice as long as sleeve bearing designs. Super Alloy Power II includes premium alloy chokes, solid polymer capacitors, and an array of high-current power stages. Dual BIOS switch lets you toggle between Quiet and Performance BIOS profiles sans software. Auto-Extreme Technology uses automation to enhance reliability. A vented backplate prevents hot air from recirculating t