Fan Model : DA04015B12HDimensions : 40 * 40 * 15mm (4015)Fan speed : 11000RPMBearing Type : Dual ball bearingNoise : 41.5dBAWind : 14.84CFMCurrent : 0.26ARated voltage : 12VSpeed function : SupportFan Interface : 4P interfaceCable length : 12CMFeatures: supports speed function , support PWM speed control thermostat .Features double ball bearing maintenance , long service life , with plenty of cooling air volume and pressureLife: 10.0000 hours (25 °, 45 to 85 % relative humidity )100% genuine , disguising ! A lost decade !