Features:- OC mode : TBD MHz (Boost Clock); TBD MHz (Game Clock)- Axial-tech fan design features a smaller fan hub that facilitates longer blades and a slimmed down barrier ring that provides better airflow through the cooling array.- Dual ball fan bearings can last up to twice as long as sleeve bearing designs.- A 2.7-slot design expands cooling surface area to make the most of the powerful Axial-tech fans.- An all-aluminum shroud and metal backplate enhance durability.- A 144-hour validation program puts cards through a series of stringent tests to ensure compatibility with the latest games.- A vented backplate prevents hot air from recirculating through the cooling array.