Product model: AFB1212SHE. Appearance size: 120 x 120 * 38mm. Center hole distance: 105X105MM. Speed reference: 3700 + + 10%. Bearing type: double ball bearing. Service life: 50,000 hours. Noise reference: 53 db. Rated voltage: 24V. Rated current: 0.75a. Air volume reference: 151.8CFM. Speed measuring function: support. PWM function: not supported. Interface type: main board 3pin port, (line length 20cm) or 2-line 2P interface. Fan origin: China. Packing type: industrial large box packing, no single package. Single net weight: 243 grams.