WINDFORCE 2X cooling system The airflow is spilt through the triangle design at the fan edge, and is guided smoothly through the fan by special 3D stripe curve design. At the same time, it effectively enhanced the cooling capacity while reducing air turbulence. The pure copper heat pipe direct touch (HDT) technology delivers superior cooling capacity and heat transfer efficiency at an extremely low noise level. LED indicators on the top of the graphics card provide an instant display of whether the fans are spinning or not. Glorious black metal back plate engraved with G1 GAMING logo inspires passion for gaming.