DCcooling fan Specification Product SizeBearingTypeVoltageOperation VoltageRatedCurrentPower consumptionRatedSpeedAirFlowAirpressureNoiseWeightVDCVDCAWRPMCFMmmH2odBg120x120x25Sleeve1210 140.141.68130034.80.9129.2581210 140.303.6200053.22.2832.42422 260.222.64200053.22.2832.4One Ball1210 140.141.68130034.80.9129.21210 140.303.6200053.22.2832.42422 260.222.64200053.22.2832.4Two Ball1210 140.303.6200053.22.2832.4