cooler master 12cm sleeve bearing fan 4 pcs in 1 value pack dimension (w / h / d) 120*120*25mm voltage 12vdc current (ampere) 0.15 a±10% input (watt) 1.8w±10% speed (r.p.m.) 1200 r.p.m.±10% air flow (cfm) 44.73cfm air pressure (mmh2o) 1.65 mmh2o fan noise level (db-a) 19.1 db-a weight 120 g available color black bearing type ball fan life expectancy 50,000 hours connector 3 pin screws 4 pcs