Item specifics Brand Name: SXDOOL Model Number: MGT6012YR-015 Type: Fan Heatsink Material: Copper & Aluminum Application: Graphics Card Compatible CPU: yes Package: Yes Lines: showed as above pic Product Description Diameter: 5.5 cmThree screw holes in an equilateral triangle , adjacent to the hole center to hole center distance is 4.3 cmVoltage : 12VCurrent : 0.37ASpeed: 4000 ( wind speed fast heat dissipation good )Three-wire board connectors Packaging Details Unit Type: piece Package Weight: 0.35kg (0.77lb.) Package Size: 15cm x 15cm x 5cm (5.91in x 5.91in x 1.97in)