Brushed aluminum sheet enhances the texture. Noise reduction technology combined with sound-absorbing rubber pads can reduce the vibration of the fan during operation and improve overall stability. Axis CD pattern design,Enhance the layering of lens imaging 14CM size, quieter and more efficient, covers a larger area, thus providing more airflow and helping to reduce the temperature inside the chassis. Classic two-color front and back leaves,In paying tribute to classics and pursuing fashion , explore side of aesthetics. This is a sincere thanks to classic aesthetics and a recognition of modern aesthetics. Hign-concerned Chemical:None Voltage:12V Fan Speed:600 - 1800rpm Used For:case/Radiator Power Interface:4PIN,5v-3pin ARGB Blade Quantity:7 Air Volume:65.8 Fan Size:140mm Colour: black Material:ABS+Metal style:A normal leaf The actual product may have slight color difference or difference, which not affect the use Package Contents: 1 * Cooling Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.