Features 1、Silent Fan: PWM ARGB fan with 8 soft silicone pads at the corners to absorb vibration. Max noise only 31dBA, equivalent to the sound of falling leaves. Say no to noise disturbance during work or gaming. 2、High Efficiency Hydraulic Bearing: Cooling fan with ultra durable MFDB dynamic pressure bearing. Using low friction magnetic levitation bearing technology, longer lifespan than traditional bearings, up to 10000 hours of bearing life. 3、Smart PWM Temperature Control: Dynamically control fan speed within the range of 300‑1100rpm, reducing noise. Plug the PWM pin into SYS_FAN pin, and the motherboard sync pin into the motherboard +5V D G pin (Note: The motherboard sync pin has a male and female design, adjacent fans can be connected in series with other lighting devices). 4、15 Blade Design: With 15 high pressure fan blades, the airflow can reach 76.5CFM at 1100PRM. The computer case fan focuses on improving performance, providing stable air pressure and strong airflow. 5、Easy Installation: The computer case fan is compatible with all types of cases, easy to install. Humanized power interface design, plug and play, 105mm 125mm dual screw hole matrix (Note: the hole distance is the distance between the center points of the 2 screw holes). Specification Item Type: Computer Case Fan Material: ABS Product Size: Approx. 140x140x15mm / 5.5x5.5x0.6in Hole Spacing: 105mm 125mm Dual Screw Hole Spacing Bearing Type: MFDB Rated Voltage: 12V Rated Current: 0.3±0.02A Rated Speed: 300-1100RPM±10% Airflow: 76.5CFM Function: PWM and ARGB Package List 1 x Computer Case Fan 4 x Screws