Features: To maintain the best running for time 180000 hours Fan interface board 4 pin interface With high precision ball bearing.Suitable for a variety of application scenarios,can be installed in CPU radiator, or used on the chassis that require a 12cm fan. Large air volume design, stable air flow, low noise and large air volume. Support 3700rpm high speed intelligent temperature control and speed regulation. Specifications: Family: Fans DC Fan Model FFB1212SH Dimension:approx 120x120x25mm/4.72x4.72x0.98in Bearing: Ball Bearing Standard voltage 12V Current 1.24A Speed :about 3700RPM Volume 140.16CFM Noise: 54.3dBA Package Includes: 1 PC x FFB1212SH Cooling Fan note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!