Fan parameters :Product Type : DA07015T12UDimensions : 70mm × 70mm × 15mmSpeed reference :1950 to 4400± 10% RPMBearing Type : Single BallLife: 40,000 hoursNoise Reference : 19DBA ~ 30DBA ± 3DBARated voltage : DC12VRated voltage : 0.7AInterface Type: Motherboard 4pin portSpeed Monitoring : SupportFans line length : 19cmApplication: Replace the CPU heat sink , chassis, power supply fan transmation, auxiliary water cooling , heat consoles , servers , fan leaves . 478 replacement fan blades and suitable equipment.Features: long life. High speed is not afraid of dirt . Air volume . Particularly preferred replacement fan cafe batch leaves .Current is relatively large, the maximum speed of sound slightly larger