Product model: AFC0912D. Appearance size: 92 x 92 * 25mm. Center hole distance: 72mm. Speed reference: 4800 plus or minus 10%. Bearing type: double ball bearing. Service life: 50,000 hours. Noise reference: 53 db. Rated voltage: 12V. Rated current: 0.46A. Wind volume reference: 113.11CFM. Speed measuring function: support. PWM function: support. Interface type: motherboard 4Pin, please contact us for other interface. Fan origin: China. Packing type: industrial large box packing, no single package.