Versatile Cooling Solution50mm USB fan is for 3D printers, humidifiers,aromatherapy, small squirrel cage , From electronics and personal use to small computer components, vivariums, and even RV refrigerators. Small but Mighty With a compact and lightweight design, this micro 50mm blower fan is perfect for DIY cooling and tight spaces. Easy to Use Simply plug into any standard USB port and start cooling. Compatible with phone chargers, laptops, and power banks. Quick and Simple Installation 5015 blower fan is easy to install with a size of 50mm L x 50mm W x 15mm H and mounting spacing of 2.24 in. Powerful PerformanceRated Voltage: 5V Bearing:Sleeve Current:0.12A Power:0.5W Airflow:2.91 CFM Static Pressure:0.45 In H2O Speed: 3500RPM Noise: 25.7 dBA Lifespan: 35,000 hrs