The 120mm x 32mm DualBall DC24V Blower Centrifugal Fan is designed with Component and features a dualball bearing for enhanced durability andlongevity. Its compact size and 4 pin connector make it easyto install and control. For 3D printer users and enthusiasts,the 120mmx120mmx32mm DualBall DC24V Blower Centrifugal Fan is a must for 3D printing project or need cooling for your setups. powerful and efficient cooling with the this DualBall DC24V Blower Centrifugal Fan. Perfect for air exhaust vent cooling,this fan delivers big to keep your electronic equipment running smoothly.