-optimized fan blade design: 11 fan blades provide optimized airflow through optimization and structural design to achieve superior cooling capacity. 120mm case fan provides excellent airflow with LED makes your case gorgeous. Light guide ring Design High-quality LED Chip, Anti-aging, And Stable Brightness, . Perfect cooling performance,silent operation as an excellent choice for case cooling. Enhanced Fan Frame: Enhanced frame structure, reducing turbulent flow noise increase efficiency. Item number:120 Applicable accessories type: chassis Applicable and models: General Type: cooling fan Bearing type: hydraulic bearing Rotational speed:1000 Noise:23 Service life: 30,000 hours Heat dissipation mode: air cooling Number of heat pipes:4P USB interface:4P Size:12cm Application object: chassis colour:Pink Material:PC Package Contents: 6 x cooling fans. 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.