4Pcs 75mm USB Fan 75mm x 15mm Cooling Turbo Blower Fan 5V 7515 USB DC Brushless Small Computer Case Fan Cooler for 3D Printer Cooling Electronics, Air Purifier Cooling DIY Projects

Blower fan 75mm x 75mm x 15mm / 2.95in x 2.95in x 0.59 in; Rated Voltage:5V; Rated Current: 0.4A; Power: 2W; Speed: 3000RPM; Air flow: 6.83 CFM; Noise: 34dBA; Connecter: USB | Only need plug 70mm fan into usb port, compatible with laptop, power bank and all standard USB outlets, operating voltage range: 4v to 5.5v, starting voltage: 3.3v | The 70mm blower fan pulls air in from the sides and forces it out at a concentrated 90 angle | 7515 5v usb fan is energy-efficient compatible with cooling raspberry pi, PC, laptop, helmets, small fermentation Fridge, aroma diffuser, and other DIY projects | 7515 5V USB fan suitable for hot end cooling, 3D printers hotend, computer, humidifier or other cooling requirements (When using, pay attention to your devices whether the rated current can support the normal operation of the fan).