The 9CRE0412P5J03 is a 12VDC 56mm Counter Rotating Fan with a ball bearing. This San Ace 40 series axial fan features wire leaded power connection with inlet consists of +ve refers to red wire, -ve refers to black wire, sensor refers to yellow wire, control refers to brown wire and outlet consists of +ve refers to orange wire, -ve refers to gray wire, sensor refers to purple wire, control refers to white wire. The 9CRE type fan comes with an aluminum frame and plastic impeller.