Ultra-thin design, no space: 15mm thickness, less space than the conventional 25mm thickness, reduce interference with the motherboard graphics card, suitable for various small-sized chassis. 4Pin intelligent temperature control fan, support PWM temperature control speed regulation, balance performance and noise. Dual noise reduction fan: adopts 15-blade design golden , double-sided silicone shock pad, reduces chassis resonance, easily achieves low noise and strives to achieve high-efficiency output. Magnetic suspension bearing, extend service life: adopt MFDB magnetic suspension bearing, stable speed, reduce wear, reduce noise, and quiet. Double-sided shock-absorbing rubber pads: Shock-absorbing rubber pads are installed on both sides of the four corners to effectively absorb vibrations at high speeds, reduce resonance noise, and run more stably. Fan size: 140x140x15mm Rated Voltage: DC 12V Rated speed: 300-1100 10%RPM Noise: 31dB(A)(MAX) Air volume range: 76.5CFM (MAX) Air pressure: 1.4mmH2O(MAX) Current: 0.30A0.02A Bearing type: MFDB Note:due to different production batches, there are differences in printing screen printing, which does not affect the use. Color:Black Material:plastic Package Contents: 1 * Computer Case 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.