ANVISION 2-Pack 40mm x 10mm 4010 Dual Ball Bearing DC 5V USB Brushless Cooling Fan, YDM4010B05

• Rated Voltage: 5V DC, Current: 0.2A
• Airflow: 7.32CFM, Speed: 6000PRM, Noise: 26.26dBA
• Bearing Type: Dual Ball Bearing
• Lead Wire: USB, length: 0.5m
• Warranty: two years, Package: 2x DC brushless fans

Dimension: 40*40*10mm Housing: Black PBT (UL94V-0) Fan Blade: 7 Blades, Black PBT (UL94V-0) Bearing System: Two Ball Bearings Rated Voltage: 5V DC Operating Voltage Range: 4.5-5.5V DC Start-up Voltage: 3.5V DC Rated Current: 0.08A (0.20A Max.) Rated Power: 0.40W (1.0W Max.) Rated Speed: 6000PRM Air Flow: 7.32CFM Air Pressure: 2.98mmH2O *Noise Level: 26.26dB(A) Conform to RoHS: Yes Life Expectancy: 50000H at 25degree test Net Weight: 18.7g *Acoustical Noise Testing Condition: Fan is hanged in anechoic chamber, noise is measured at rated voltage in anechoic chamber with microphone at a distance of 1 meter formthe air intake.