Size 40x40x48mm Bearing double ball bearing Working voltage 12V Current 1.0A 12W Speed 10500rpm Frame material Glass fiber reinced plastic, PBT shell, PA blade, environmental certification Features Because of the special excellent bearing, the same speed has a large air volume, with speed measurement. It is the first maglev motor with a double ball fan! Interface Motherboard 4 pin plug as shown (support speed measurement) Applicable to the rear fan of the computer case, high reliability server application place, game machine heat modification, other heat sinking purposes