Size: 120X120X25MM Bearing: Double ball bearing Voltage: DC 12V Current: 1.05A Power: 12.6W Speed: 3800RPM (full speed) Air volume: 120.16CFM Noise: 45.5 (full speed) Interface: motherboard 5PIN interface (4 lines) Speed measurement: Support speed measurement function Weight: 230 grams PWM fan is only supported by the motherboard with four-pin connector