3010 Silent PWM Hydraulic 12V/5V 30x30x10mm Mini Cooling Fan with Temperature

Model: 3010. Interface type: 4-pin interface (supports PWM signal). Noise: typically 15-25 dB (decibels), with a silent design. Bearing type: Hydraulic Bearing, long service life, low noise. Other: Any occasion that requires a miniature cooling fan.