MUTI USED FAN75mm usb blower fan; ideal cooling or ventilation for Laptops, USB Hard Drive, Helmets, Small Fermentation Fridge, Aroma Diffuser, and other DIY projects LOW PROFILE DESIGNThis blower pulls air in from the sides and forces it out at a concentrated 90º angle, ideal for applications with limited clearance USB POWEREDUSB Plug w/35cm cable compatible with laptop, power bank and all standard USB outlets; Operating Voltage Range: 4V to 5.5V, Starting Voltage: 3.3V EASY TO INSTALL Blower Size: 75x75x15 mm(2.95x2.95x0.59 in.); Air Intake: 50.6 mm/2 in.; Air Outlet: 45.5x15 mm(1.79x0.59 in.); Mounting Hole Pitch: 80 mm/3.15 in. 7515 BLOWERBearings: Sleeve Rated Voltage: 5V DC Current: 0.4 Amp Power: 2 W Airflow: 6.83 CFM Static Pressure: 0.53 In H2O Fan Speed: 3000RPM Lifespan: 35,000 hrs