Feature:1. Low Noise: This 1550RPM cooling fan has eight soft silicone pads at the 4 corners to absorb vibrations at high speeds. The maximum noise is only 35.1dBA, equivalent to the sound of falling leaves. Let you refuse to be disturbed by noise while working or gaming.2. High Efficiency Hydraulic Bearing: This bearing case fan features super durable MFDB dynamic pressure bearing bearings. With low coefficient of friction magnetic levitation bearing technology, it lasts longer than traditional bearings, and the bearing life can reach more than 10,000 hours.3. PWM Intelligent Temperature Control: This computer case fan adopts PWM intelligent temperature control, with up to 1500rpm fan speed to reduce the noise. WM pin can be inserted into SYS FAN pin, and the motherboard synchronisation pin can be inserted into the motherboard +5V D G pin.4. 7 Blades Design: This ARGB case cooler fan features a 7 blades design with an airflow of up to 53CFM at 1500PRM. The chassis fan focuses on improving performance by delivering consistent air pressure and powerful airflow.5. Easy To Install: This hydraulic bearing case fan is compatible with all types of chassis, easy to install. The humanised design of the power supply connector, which is ready to use after installation.Specification:Item Type: Case FanMaterial: ABSSize: Approx. 120 x 120 x 25mm / 4.72 x 4.72 x 0.98inHole Spacing: Screw Hole Space: Approx. 105mm / 4.13inBearing Type: MFDBRated Voltage: 12VRated Current: 0.09Rated Speed: 1500RPM10%Airflow: 53CFMFunction: 4PIN PWM+5V ARGB.Package List:1 x Case Fan4 x Long Screws4 x Short Screws