Widely used: 50x50x10mm USB fans, ideal for cooling aroma diffuser, humidifier, beauty device, power supply, game consoles, VR gear, small projectors and other DIY projects ventilation.
Adjustable speed: equipped with a governor, you can adjust the speed and wind force as needed.
USB power: 120cm/3.94ft USB power cord; 5V USB ports compatible with laptop, power bank and all standard USB outlets; don't need to buy additional cords.
Protective: Metal fan grill on both sides; Protect your fingers and fan blades; the center to center hole distance is 1.57 in.
Portable: Compact lightweight, great for DIY cooling and small spaces, quiet 50mm usb cooling fans keep your system cool and extend the life.