1U server fan PFB0412EHN-SP12Air volume fan violence[Brfand]:Delta[Fan model]: PFB0412EHN-SP12[Dimension]: 40x40x28mm[Rated]: DC12V[Range]: DC7.0V-13.6V[Power]: 0.72[Speed]: 16000 r.p.m[Temperature range]:-10 ... 70 °C[Life expectancy]: 25 ° c L10 life expectancy of 50,000 hours[Bearing]: maintenance- double ball bearing[Direction of rotation]: air discharged from the bracket, facing the rotor counterclockwise[Connection]: + Red-Black signal: Blue (blue line speed yellow: PWM speed control) cord length 11 cm[Maximum air volume]: 22CFM[Protection]: overload protection, fault-protected and locked-rotor locks flow protection[Noise indicators]: 54.5 dB (a)[Material material]: glass-fibre reinced plastic, PBT housings, PA leaves[Function]: electronically commutated external rotor DC fan, full commutation electronic parts